Remove superfluous words from comments (#119055)

* Remove superfluous words from comments.

* Revert `win32_window.h`

Which seems to come from `gallery`

packages/flutter/lib/src/cupertino/adaptive_text_selection_toolbar.dart

@@ -157,7 +157,7 @@ class CupertinoAdaptiveTextSelectionToolbar extends StatelessWidget {
   final List<ContextMenuButtonItem>? buttonItems;
 
   /// Returns a List of Widgets generated by turning [buttonItems] into the
-  /// the default context menu buttons for Cupertino on the current platform.
+  /// default context menu buttons for Cupertino on the current platform.
   ///
   /// This is useful when building a text selection toolbar with the default
   /// button appearance for the given platform, but where the toolbar and/or the
@@ -165,7 +165,7 @@ class CupertinoAdaptiveTextSelectionToolbar extends StatelessWidget {
   ///
   /// Does not build Material buttons. On non-Apple platforms, Cupertino buttons
   /// will still be used, because the Cupertino library does not access the
-  /// Material library. To get the native-looking buttons on every platform, use
+  /// Material library. To get the native-looking buttons on every platform,
   /// use [AdaptiveTextSelectionToolbar.getAdaptiveButtons] in the Material
   /// library.
   ///

packages/flutter/lib/src/foundation/diagnostics.dart

@@ -2561,7 +2561,7 @@ class DiagnosticsProperty<T> extends DiagnosticsNode {
   /// The [showName], [showSeparator], [style], [missingIfNull], and [level]
   /// arguments must not be null.
   ///
-  /// The [level] argument is just a suggestion and can be overridden if
+  /// The [level] argument is just a suggestion and can be overridden
   /// if something else about the property causes it to have a lower or higher
   /// level. For example, if calling `computeValue` throws an exception, [level]
   /// will always return [DiagnosticLevel.error].

packages/flutter/lib/src/gestures/monodrag.dart

@@ -180,7 +180,7 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
   ///  * [allowedButtonsFilter], which decides which button will be allowed.
   GestureDragCancelCallback? onCancel;
 
-  /// The minimum distance an input pointer drag must have moved to
+  /// The minimum distance an input pointer drag must have moved
   /// to be considered a fling gesture.
   ///
   /// This value is typically compared with the distance traveled along the

packages/flutter/lib/src/material/action_chip.dart

@@ -20,7 +20,7 @@ import 'theme_data.dart';
 /// Action chips can be tapped to trigger an action or show progress and
 /// confirmation. For Material 3, a disabled state is supported for Action
 /// chips and is specified with [onPressed] being null. For previous versions
-/// of Material Design, it is recommended to remove the Action chip from the
+/// of Material Design, it is recommended to remove the Action chip from
 /// the interface entirely rather than display a disabled chip.
 ///
 /// Action chips are displayed after primary content, such as below a card or

packages/flutter/lib/src/material/adaptive_text_selection_toolbar.dart

@@ -220,7 +220,7 @@ class AdaptiveTextSelectionToolbar extends StatelessWidget {
   }
 
   /// Returns a List of Widgets generated by turning [buttonItems] into the
-  /// the default context menu buttons for the current platform.
+  /// default context menu buttons for the current platform.
   ///
   /// This is useful when building a text selection toolbar with the default
   /// button appearance for the given platform, but where the toolbar and/or the

packages/flutter/lib/src/material/app_bar.dart

@@ -129,7 +129,7 @@ class _PreferredAppBarSize extends Size {
 ///
 /// If the app bar's [actions] contains [TextButton]s, they will not
 /// be visible if their foreground (text) color is the same as the
-/// the app bar's background color.
+/// app bar's background color.
 ///
 /// The default app bar [backgroundColor] is the overall theme's
 /// [ColorScheme.primary] if the overall theme's brightness is
@@ -591,7 +591,7 @@ class AppBar extends StatefulWidget implements PreferredSizeWidget {
   /// See also:
   ///
   ///  * [actionsIconTheme], which defines the appearance of icons in
-  ///    in the [actions] list.
+  ///    the [actions] list.
   final IconThemeData? iconTheme;
 
   /// {@template flutter.material.appbar.actionsIconTheme}
@@ -746,7 +746,7 @@ class AppBar extends StatefulWidget implements PreferredSizeWidget {
   ///
   ///  * [titleTextStyle], which overrides the default text style for the [title].
   ///  * [DefaultTextStyle], which overrides the default text style for all of the
-  ///    the widgets in a subtree.
+  ///    widgets in a subtree.
   final TextStyle? toolbarTextStyle;
 
   /// {@template flutter.material.appbar.titleTextStyle}
@@ -764,7 +764,7 @@ class AppBar extends StatefulWidget implements PreferredSizeWidget {
   ///    [title], [leading], and [actions] widgets, also known as the
   ///    AppBar's "toolbar".
   ///  * [DefaultTextStyle], which overrides the default text style for all of the
-  ///    the widgets in a subtree.
+  ///    widgets in a subtree.
   final TextStyle? titleTextStyle;
 
   /// {@template flutter.material.appbar.systemOverlayStyle}

packages/flutter/lib/src/material/checkbox.dart

@@ -34,7 +34,7 @@ import 'toggleable.dart';
 ///
 /// {@tool dartpad}
 /// This example shows how you can override the default theme of
-/// of a [Checkbox] with a [MaterialStateProperty].
+/// a [Checkbox] with a [MaterialStateProperty].
 /// In this example, the checkbox's color will be `Colors.blue` when the [Checkbox]
 /// is being pressed, hovered, or focused. Otherwise, the checkbox's color will
 /// be `Colors.red`.

packages/flutter/lib/src/material/drawer.dart

@@ -115,7 +115,7 @@ const Duration _kBaseSettleDuration = Duration(milliseconds: 246);
 /// {@end-tool}
 ///
 /// An open drawer may be closed with a swipe to close gesture, pressing the
-/// the escape key, by tapping the scrim, or by calling pop route function such as
+/// escape key, by tapping the scrim, or by calling pop route function such as
 /// [Navigator.pop]. For example a drawer item might close the drawer when tapped:
 ///
 /// ```dart

packages/flutter/lib/src/material/flexible_space_bar.dart

@@ -116,7 +116,7 @@ class FlexibleSpaceBar extends StatefulWidget {
   /// bottom-left or its center.
   ///
   /// Typically this property is used to adjust how far the title is
-  /// is inset from the bottom-left and it is specified along with
+  /// inset from the bottom-left and it is specified along with
   /// [centerTitle] false.
   ///
   /// By default the value of this property is

packages/flutter/lib/src/material/range_slider.dart

@@ -326,7 +326,7 @@ class RangeSlider extends StatefulWidget {
   /// the range slider thumb is hovered or dragged.
   ///
   /// If this property is null, [RangeSlider] will use [activeColor] with
-  /// with an opacity of 0.12. If null, [SliderThemeData.overlayColor]
+  /// an opacity of 0.12. If null, [SliderThemeData.overlayColor]
   /// will be used, otherwise defaults to [ColorScheme.primary] with
   /// an opacity of 0.12.
   final MaterialStateProperty<Color?>? overlayColor;

packages/flutter/lib/src/material/slider.dart

@@ -431,7 +431,7 @@ class Slider extends StatefulWidget {
   /// the slider thumb is focused, hovered, or dragged.
   ///
   /// If this property is null, [Slider] will use [activeColor] with
-  /// with an opacity of 0.12, If null, [SliderThemeData.overlayColor]
+  /// an opacity of 0.12, If null, [SliderThemeData.overlayColor]
   /// will be used.
   ///
   /// If that is also null, If [ThemeData.useMaterial3] is true,

packages/flutter/lib/src/material/snack_bar.dart

@@ -96,7 +96,7 @@ class SnackBarAction extends StatefulWidget {
   /// [SnackBarThemeData.actionTextColor].
   ///
   /// If [textColor] is a [MaterialStateColor], then the text color will be
-  /// be resolved against the set of [MaterialState]s that the action text
+  /// resolved against the set of [MaterialState]s that the action text
   /// is in, thus allowing for different colors for states such as pressed,
   /// hovered and others.
   final Color? textColor;
@@ -366,7 +366,7 @@ class SnackBar extends StatefulWidget {
   /// inverse surface.
   ///
   /// If [closeIconColor] is a [MaterialStateColor], then the icon color will be
-  /// be resolved against the set of [MaterialState]s that the action text
+  /// resolved against the set of [MaterialState]s that the action text
   /// is in, thus allowing for different colors for states such as pressed,
   /// hovered and others.
   final Color? closeIconColor;

packages/flutter/lib/src/material/theme_data.dart

@@ -1145,7 +1145,7 @@ class ThemeData with Diagnosticable {
   /// to determine the current platform for the purpose of emulating the
   /// platform behavior (e.g. scrolling or haptic effects). Widgets and render
   /// objects at lower layers that try to emulate the underlying platform
-  /// platform can depend on [defaultTargetPlatform] directly, or may require
+  /// can depend on [defaultTargetPlatform] directly, or may require
   /// that the target platform be provided as an argument. The
   /// [dart:io.Platform] object should only be used directly when it's critical
   /// to actually know the current platform, without any overrides possible (for
@@ -1591,7 +1591,7 @@ class ThemeData with Diagnosticable {
   ///
   /// Apps should migrate uses of this property to the theme's [colorScheme]
   /// [ColorScheme.secondary] color. In cases where a color is needed that
-  /// that contrasts well with the secondary color [ColorScheme.onSecondary]
+  /// contrasts well with the secondary color [ColorScheme.onSecondary]
   /// can be used.
   @Deprecated(
     'Use colorScheme.secondary instead. '
@@ -2539,7 +2539,7 @@ class ThemeData with Diagnosticable {
 /// styles.
 ///
 /// In the most basic case, [ThemeData]'s `cupertinoOverrideTheme` is null and
-/// and descendant Cupertino widgets' styling is derived from the Material theme.
+/// descendant Cupertino widgets' styling is derived from the Material theme.
 ///
 /// To override individual parts of the Material-derived Cupertino styling,
 /// `cupertinoOverrideTheme`'s construction parameters can be used.

packages/flutter/lib/src/painting/box_shadow.dart

@@ -80,7 +80,7 @@ class BoxShadow extends ui.Shadow {
 
   /// Linearly interpolate between two box shadows.
   ///
-  /// If either box shadow is null, this function linearly interpolates from a
+  /// If either box shadow is null, this function linearly interpolates from
   /// a box shadow that matches the other box shadow in color but has a zero
   /// offset and a zero blurRadius.
   ///

packages/flutter/lib/src/painting/gradient.dart

@@ -468,7 +468,7 @@ class LinearGradient extends Gradient {
 
   /// Linearly interpolate between two [LinearGradient]s.
   ///
-  /// If either gradient is null, this function linearly interpolates from a
+  /// If either gradient is null, this function linearly interpolates from
   /// a gradient that matches the other gradient in [begin], [end], [stops] and
   /// [tileMode] and with the same [colors] but transparent (using [scale]).
   ///
@@ -747,7 +747,7 @@ class RadialGradient extends Gradient {
 
   /// Linearly interpolate between two [RadialGradient]s.
   ///
-  /// If either gradient is null, this function linearly interpolates from a
+  /// If either gradient is null, this function linearly interpolates from
   /// a gradient that matches the other gradient in [center], [radius], [stops] and
   /// [tileMode] and with the same [colors] but transparent (using [scale]).
   ///

packages/flutter/lib/src/rendering/sliver_multi_box_adaptor.dart

@@ -169,7 +169,7 @@ class SliverMultiBoxAdaptorParentData extends SliverLogicalParentData with Conta
 ///   been laid out during that layout pass.
 /// * Children cannot be added except during a call to [childManager], and
 ///   then only if there is no child corresponding to that index (or the child
-///   child corresponding to that index was first removed).
+///   corresponding to that index was first removed).
 ///
 /// See also:
 ///

packages/flutter/lib/src/widgets/draggable_scrollable_sheet.dart

@@ -317,7 +317,7 @@ class DraggableScrollableSheet extends StatefulWidget {
   /// The initial fractional value of the parent container's height to use when
   /// displaying the widget.
   ///
-  /// Rebuilding the sheet with a new [initialChildSize] will only move the
+  /// Rebuilding the sheet with a new [initialChildSize] will only move
   /// the sheet to the new value if the sheet has not yet been dragged since it
   /// was first built or since the last call to [DraggableScrollableActuator.reset].
   ///

packages/flutter/lib/src/widgets/editable_text.dart

@@ -3966,7 +3966,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
     // `x ∉ getTextBoundaryAt(x)`. In case `caretOffset` points to one such
     // control character, we define that these control characters themselves are
     // still part of the previous line, but also exclude them from the
-    // the line boundary range since they're non-printing. IOW, no additional
+    // line boundary range since they're non-printing. IOW, no additional
     // processing needed since the LineBoundary class does exactly that.
     return forward
       ? TextPosition(offset: textBoundary.getTrailingTextBoundaryAt(caretOffset) ?? _value.text.length, affinity: TextAffinity.upstream)

packages/flutter/lib/src/widgets/localizations.dart

@@ -318,8 +318,8 @@ class _LocalizationsScope extends InheritedWidget {
 /// }
 /// ```
 ///
-/// Each delegate can be viewed as a factory for objects that encapsulate a
-/// a set of localized resources. These objects are retrieved with
+/// Each delegate can be viewed as a factory for objects that encapsulate a set
+/// of localized resources. These objects are retrieved with
 /// by runtime type with [Localizations.of].
 ///
 /// The [WidgetsApp] class creates a [Localizations] widget so most apps

packages/flutter/lib/src/widgets/performance_overlay.dart

@@ -59,7 +59,7 @@ class PerformanceOverlay extends LeafRenderObjectWidget {
   /// For example, if you want a trace of all pictures that could not be
   /// rendered by the rasterizer within the frame boundary (and hence caused
   /// jank), specify 1. Specifying 2 will trace all pictures that took more
-  /// more than 2 frame intervals to render. Adjust this value to only capture
+  /// than 2 frame intervals to render. Adjust this value to only capture
   /// the particularly expensive pictures while skipping the others. Specifying
   /// 0 disables all capture.
   ///

packages/flutter/lib/src/widgets/scroll_physics.dart

@@ -405,8 +405,8 @@ class ScrollPhysics {
     );
   }
 
-  /// The minimum distance an input pointer drag must have moved to
-  /// to be considered a scroll fling gesture.
+  /// The minimum distance an input pointer drag must have moved to be
+  /// considered a scroll fling gesture.
   ///
   /// This value is typically compared with the distance traveled along the
   /// scrolling axis.

packages/flutter/test/material/tabs_test.dart

@@ -704,7 +704,7 @@ void main() {
     }
     // End the fling by reversing direction. This should cause not cause
     // a change to the selected tab, everything should just settle back to
-    // to where it started.
+    // where it started.
     for (int index = 0; index > 50; index += 1) {
       await gesture.moveBy(const Offset(10.0, 0.0));
       await tester.pump(const Duration(milliseconds: 1));

packages/flutter/test/material/text_field_test.dart

@@ -11039,7 +11039,7 @@ void main() {
       expect(
         tester.getSize(find.byType(TextField)),
         // When the strut fontSize is larger than a provided TextStyle, the
-        // the strut's height takes precedence.
+        // strut's height takes precedence.
         const Size(800, 78),
       );
     },

packages/flutter/test/physics/newton_test.dart

@@ -60,7 +60,7 @@ void main() {
     expect(friction.dx(1.0), moreOrLessEquals(endVelocity));
 
     // Same scenario as above except that the velocities are
-    // are negative.
+    // negative.
     startPosition = 1000.0;
     startVelocity = -500.0;
     f = FrictionSimulation(0.025, 1000.0, -500.0);

packages/flutter_tools/lib/src/base/utils.dart

@@ -339,7 +339,7 @@ List<String> _wrapTextAsLines(String text, {
   final int effectiveLength = math.max(columnWidth - start, kMinColumnWidth);
   for (final String line in text.split('\n')) {
     // If the line is short enough, even with ANSI codes, then we can just add
-    // add it and move on.
+    // it and move on.
     if (line.length <= effectiveLength || !shouldWrap) {
       result.add(line);
       continue;

packages/flutter_tools/lib/src/localizations/message_parser.dart

@@ -335,7 +335,7 @@ class Parser {
       parsingStack.addAll(grammarRule.reversed);
 
       // For tree construction, add nodes to the parent until the parent has all
-      // all the children it is expecting.
+      // the children it is expecting.
       parent.children.add(node);
       if (parent.isFull) {
         treeTraversalStack.removeLast();

packages/flutter_tools/lib/src/template.dart

@@ -86,7 +86,7 @@ class Template {
           from: templateFiles[entity]!.absolute.path);
       if (relativePath.contains(templateExtension)) {
         // If '.tmpl' appears anywhere within the path of this entity, it is
-        // is a candidate for rendering. This catches cases where the folder
+        // a candidate for rendering. This catches cases where the folder
         // itself is a template.
         _templateFilePaths[relativePath] = fileSystem.path.absolute(entity.path);
       }

packages/flutter_tools/lib/src/test/web_test_compiler.dart

@@ -52,7 +52,7 @@ class WebTestCompiler {
     LanguageVersion languageVersion = LanguageVersion(2, 8);
     late final String platformDillName;
 
-    // TODO(zanderso): to support autodetect this would need to partition the source code into a
+    // TODO(zanderso): to support autodetect this would need to partition the source code into
     // a sound and unsound set and perform separate compilations
     final List<String> extraFrontEndOptions = List<String>.of(buildInfo.extraFrontEndOptions);
     if (buildInfo.nullSafetyMode == NullSafetyMode.unsound || buildInfo.nullSafetyMode == NullSafetyMode.autodetect) {