Improved tab overview animations with better animation and wiring to...

chrome/browser/views/tabs/tab_overview_container.cc

 // Copyright (c) 2009 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 "chrome/browser/views/tabs/tab_overview_container.h"
 
 #include <gtk/gtk.h>
 
 #include "app/gfx/canvas.h"
 #include "app/gfx/path.h"
@@ skipping 16 matching lines @@
 
 TabOverviewContainer::~TabOverviewContainer() {
 }
 
 void TabOverviewContainer::SetMaxSize(const gfx::Size& max_size) {
   GetTabOverviewGrid()->set_max_size(
       gfx::Size(max_size.width() - kHorizontalPadding * 2,
                 max_size.height() - kVerticalPadding * 2 - kArrowHeight));
 }
 
-void TabOverviewContainer::UpdateWidgetShape(int width, int height) {
+void TabOverviewContainer::UpdateWidgetShape(int horizontal_center,
+                                             int width, int height) {
   int bottom_y = height - kArrowHeight;
   int right_edge = width - 1;
   int center = width / 2;
-  // The points in alternating x,y pairs.
+  // The points, in alternating x,y pairs.
   int points[] = {
       kEdgeInset, 0,
       right_edge - kEdgeInset, 0,
       right_edge, kEdgeInset,
       right_edge, bottom_y - kEdgeInset - 1,
       right_edge - kEdgeInset, bottom_y - 1,
       center + kArrowHeight / 2, bottom_y - 1,
       center, bottom_y - 1 +  kArrowHeight,
       center - kArrowHeight / 2, bottom_y - 1,
       kEdgeInset, bottom_y - 1,
@@ skipping 38 matching lines @@
 }
 
 void TabOverviewContainer::DidChangeBounds(const gfx::Rect& previous,
                                            const gfx::Rect& current) {
   Layout();
 }
 
 TabOverviewGrid* TabOverviewContainer::GetTabOverviewGrid() {
   return static_cast<TabOverviewGrid*>(GetChildViewAt(0));
 }