Updated DropdownBarHost to use Layer clipping instead of OnPaint() clipping.

chrome/browser/ui/views/dropdown_bar_view.cc

Index: chrome/browser/ui/views/dropdown_bar_view.cc
diff --git a/chrome/browser/ui/views/dropdown_bar_view.cc b/chrome/browser/ui/views/dropdown_bar_view.cc
index 7f1fbb2533fd21e3f2e64ad02f9e7c952e0f556e..c86c0e8e14524e189ef0242c86d984b7e9923e65 100644
--- a/chrome/browser/ui/views/dropdown_bar_view.cc
+++ b/chrome/browser/ui/views/dropdown_bar_view.cc
@@ -20,11 +20,6 @@
 
 namespace {
 
-// When we are animating, we draw only the top part of the left and right
-// edges to give the illusion that the find dialog is attached to the
-// window during this animation; this is the height of the items we draw.
-const int kAnimatingEdgeHeight = 5;
-
 // Background to paint toolbar background with rounded corners.
 class DropdownBackground : public views::Background {
  public:
@@ -87,41 +82,12 @@ void DropdownBackground::Paint(gfx::Canvas* canvas, views::View* view) const {
 
 }  // namespace
 
-DropdownBarView::DropdownBarView(DropdownBarHost* host)
-    : host_(host),
-      animation_offset_(0) {
-}
+DropdownBarView::DropdownBarView(DropdownBarHost* host) : host_(host) {}
 
 DropdownBarView::~DropdownBarView() {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-// DropDownBarView, public:
-
-void DropdownBarView::SetAnimationOffset(int offset) {
-  animation_offset_ = offset;
-  set_clip_insets(gfx::Insets(animation_offset_, 0, 0, 0));
-}
-
-// DropDownBarView, views::View overrides:
-void DropdownBarView::OnPaint(gfx::Canvas* canvas) {
-  OnPaintBackground(canvas);
-  OnPaintBorder(canvas);
-
-  if (animation_offset() > 0) {
-     gfx::Canvas animating_edges(
-         gfx::Size(bounds().width(), kAnimatingEdgeHeight),
-         canvas->image_scale(),
-         false);
-     canvas->Translate(bounds().OffsetFromOrigin());
-     OnPaintBackground(&animating_edges);
-     OnPaintBorder(&animating_edges);
-     canvas->DrawImageInt(gfx::ImageSkia(animating_edges.ExtractImageRep()),
-         bounds().x(), animation_offset());
-  }
-}
-
-////////////////////////////////////////////////////////////////////////////////
 // DropDownBarView, protected:
 
 void DropdownBarView::SetBackground(const gfx::ImageSkia* left_alpha_mask,