Implemented prototype for new ink drop specs.

chrome/browser/ui/views/toolbar/toolbar_button.h

Index: chrome/browser/ui/views/toolbar/toolbar_button.h
diff --git a/chrome/browser/ui/views/toolbar/toolbar_button.h b/chrome/browser/ui/views/toolbar/toolbar_button.h
index c61d85cb07d293772c90469ebdd48de66cf8d1c3..913133f8b6536992dd22f4d349cd7751fdfd76a9 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_button.h
+++ b/chrome/browser/ui/views/toolbar/toolbar_button.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "ui/gfx/geometry/point.h"
 #include "ui/views/animation/ink_drop_host.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/button.h"
@@ -68,13 +69,17 @@ class ToolbarButton : public views::LabelButton,
   // to the PUSHED state.
   bool ShouldEnterPushedState(const ui::Event& event) override;
 
+  // views::LabelButton:

[Peter Kasting, 2015/09/09 22:50:46]

Nit: I would put this heading over both the overrides here and eliminate the
comment above entirely:

  // views::LabelButton:
  bool ShouldEnterPushedState(const ui::Event& event) override;
  void NotifyClick(const ui::Event& event) override;

Any commentary on ShouldEnterPushedState can be given in the implementation.

[bruthig, 2015/09/10 14:57:38]

Done.

+  void NotifyClick(const ui::Event& event) override;
+
   // Returns if menu should be shown. Override this to change default behavior.
   virtual bool ShouldShowMenu();
 
   // Function to show the dropdown menu.
   virtual void ShowDropDownMenu(ui::MenuSourceType source_type);
 
-  virtual void LayoutInkDrop();
+  // Returns the Point where the ink drop should be centered.
+  virtual gfx::Point CalculateInkDropCenter() const;
 
   views::InkDropAnimationController* ink_drop_animation_controller() {
     return ink_drop_animation_controller_.get();