Modified OverviewMode's LabelButton bounds to cover the entire item.

ui/views/controls/button/label_button.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 67 matching lines @@
   void SetStyle(ButtonStyle style);
 
   // Set the spacing between the image and the text. Shrinking the spacing
   // will not shrink the overall button size, as it is monotonically increasing.
   // Call SetMinSize(gfx::Size()) to clear the size if needed.
   void SetImageLabelSpacing(int spacing);
 
   void SetFocusPainter(scoped_ptr<Painter> focus_painter);
   Painter* focus_painter() { return focus_painter_.get(); }
 
+  // Set whether the label should ignore the vertical overlap with the border.
+  // Default is true.
+  void set_ignore_vertical_overlap(bool ignore_vertical_overlap) {
+    ignore_vertical_overlap_ = ignore_vertical_overlap;
+  }
+
   // View:
   void SetBorder(scoped_ptr<Border> border) override;
   gfx::Size GetPreferredSize() const override;
   int GetHeightForWidth(int w) const override;
   void Layout() override;
   const char* GetClassName() const override;
 
  protected:
   ImageView* image() const { return image_; }
   Label* label() const { return label_; }
@@ skipping 86 matching lines @@
 
   // The button's overall style.
   ButtonStyle style_;
 
   // True if current border was set by UpdateThemedBorder. Defaults to true.
   bool border_is_themed_border_;
 
   // Spacing between the image and the text.
   int image_label_spacing_;
 
+  // Indicates if the label should ignore the vertical overlap with the border.
+  bool ignore_vertical_overlap_;
+
   scoped_ptr<Painter> focus_painter_;
 
   DISALLOW_COPY_AND_ASSIGN(LabelButton);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_H_