views: Update event-related API to use PointF/RectF instead of Point/Rect.

ash/frame/custom_frame_view_ash.cc

Index: ash/frame/custom_frame_view_ash.cc
diff --git a/ash/frame/custom_frame_view_ash.cc b/ash/frame/custom_frame_view_ash.cc
index 8ab7e23be865b2ec1d9ec47dc7bcd44872aaf143..4e124ed1ac38e23b8eb8e42cfd15900ea826e88a 100644
--- a/ash/frame/custom_frame_view_ash.cc
+++ b/ash/frame/custom_frame_view_ash.cc
@@ -391,7 +391,7 @@ class CustomFrameViewAsh::OverlayView : public views::View {
 
   // views::View override:
   virtual void Layout() OVERRIDE;
-  virtual bool HitTestRect(const gfx::Rect& rect) const OVERRIDE;
+  virtual bool HitTestRect(const gfx::RectF& rect) const OVERRIDE;
 
  private:
   HeaderView* header_view_;
@@ -425,7 +425,8 @@ void CustomFrameViewAsh::OverlayView::Layout() {
   }
 }
 
-bool CustomFrameViewAsh::OverlayView::HitTestRect(const gfx::Rect& rect) const {
+bool CustomFrameViewAsh::OverlayView::HitTestRect(
+    const gfx::RectF& rect) const {
   // Grab events in the header view. Return false for other events so that they
   // can be handled by the client view.
   return header_view_->HitTestRect(rect);
@@ -548,7 +549,7 @@ void CustomFrameViewAsh::SchedulePaintInRect(const gfx::Rect& r) {
   }
 }
 
-bool CustomFrameViewAsh::HitTestRect(const gfx::Rect& rect) const {
+bool CustomFrameViewAsh::HitTestRect(const gfx::RectF& rect) const {
   // NonClientView hit tests the NonClientFrameView first instead of going in
   // z-order. Return false so that events get to the OverlayView.
   return false;