Add ink drop ripple to shelf overflow button

ash/test/shelf_view_test_api.cc

 // 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.
 
 #include "ash/test/shelf_view_test_api.h"
 
 #include "ash/common/shelf/overflow_button.h"
 #include "ash/common/shelf/shelf_button.h"
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/shelf_model.h"
@@ skipping 54 matching lines @@
 
 bool ShelfViewTestAPI::IsOverflowButtonVisible() {
   return shelf_view_->overflow_button_->visible();
 }
 
 void ShelfViewTestAPI::ShowOverflowBubble() {
   if (!shelf_view_->IsShowingOverflowBubble())
     shelf_view_->ToggleOverflowBubble();
 }
 
+void ShelfViewTestAPI::HideOverflowBubble() {
+  if (shelf_view_->IsShowingOverflowBubble())

[bruthig, 2016/09/01 16:12:54]

Can you make this a DCHECK instead of an if?  It is better to be explicit,
especially in tests.

[mohsen, 2016/09/10 03:03:23]

Done. Also, for the ShowOverflowBubble().

+    shelf_view_->ToggleOverflowBubble();
+}
+
 const gfx::Rect& ShelfViewTestAPI::GetBoundsByIndex(int index) {
   return shelf_view_->view_model_->view_at(index)->bounds();
 }
 
 const gfx::Rect& ShelfViewTestAPI::GetIdealBoundsByIndex(int index) {
   return shelf_view_->view_model_->ideal_bounds(index);
 }
 
 void ShelfViewTestAPI::SetAnimationDuration(int duration_ms) {
   shelf_view_->bounds_animator_->SetAnimationDuration(duration_ms);
@@ skipping 18 matching lines @@
   if (!shelf_view_->launcher_menu_runner_)
     return;
 
   shelf_view_->launcher_menu_runner_->Cancel();
 }
 
 OverflowBubble* ShelfViewTestAPI::overflow_bubble() {
   return shelf_view_->overflow_bubble_.get();
 }
 
+OverflowButton* ShelfViewTestAPI::overflow_button() const {
+  return shelf_view_->overflow_button_;
+}
+
 ShelfTooltipManager* ShelfViewTestAPI::tooltip_manager() {
   return &shelf_view_->tooltip_;
 }
 
 gfx::Size ShelfViewTestAPI::GetPreferredSize() {
   return shelf_view_->GetPreferredSize();
 }
 
 int ShelfViewTestAPI::GetButtonSize() {
   return GetShelfConstant(SHELF_BUTTON_SIZE);
@@ skipping 34 matching lines @@
   return shelf_view_->dragged_off_from_overflow_to_shelf_;
 }
 
 ShelfButtonPressedMetricTracker*
 ShelfViewTestAPI::shelf_button_pressed_metric_tracker() {
   return &(shelf_view_->shelf_button_pressed_metric_tracker_);
 }
 
 }  // namespace test
 }  // namespace ash