Ash: Double-clicking on a shelf item now opens the item

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/shelf/overflow_button.h"
 #include "ash/shelf/shelf_button.h"
 #include "ash/shelf/shelf_constants.h"
 #include "ash/shelf/shelf_model.h"
@@ skipping 96 matching lines @@
 }
 
 int ShelfViewTestAPI::GetButtonSize() {
   return kShelfButtonSize;
 }
 
 int ShelfViewTestAPI::GetButtonSpacing() {
   return kShelfButtonSpacing;
 }
 
+void ShelfViewTestAPI::ButtonPressed(views::Button* sender,
+                                     const ui::Event& event) {
+  return shelf_view_->ButtonPressed(sender, event);
+}
+
 bool ShelfViewTestAPI::SameDragType(ShelfItemType typea,
                                     ShelfItemType typeb) const {
   return shelf_view_->SameDragType(typea, typeb);
 }
 
 void ShelfViewTestAPI::SetShelfDelegate(ShelfDelegate* delegate) {
   shelf_view_->delegate_ = delegate;
 }
 
 gfx::Rect ShelfViewTestAPI::GetBoundsForDragInsertInScreen() {
   return shelf_view_->GetBoundsForDragInsertInScreen();
 }
 
 bool ShelfViewTestAPI::IsRippedOffFromShelf() {
   return shelf_view_->dragged_off_shelf_;
 }
 
 bool ShelfViewTestAPI::DraggedItemFromOverflowToShelf() {
     return shelf_view_->dragged_off_from_overflow_to_shelf_;
 }
 
 }  // namespace test
 }  // namespace ash