Making window.focus()/blur() work only when there is a user gesture.

chrome/browser/tab_contents/tab_contents_view.cc

 // Copyright (c) 2010 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/tab_contents/tab_contents_view.h"
 
 #include "chrome/browser/renderer_host/render_process_host.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #include "chrome/browser/renderer_host/render_view_host_delegate.h"
@@ skipping 54 matching lines @@
 }
 
 void TabContentsView::ShowCreatedWidget(int route_id,
                                         const gfx::Rect& initial_pos) {
   RenderWidgetHostView* widget_host_view =
       delegate_view_helper_.GetCreatedWidget(route_id);
   ShowCreatedWidgetInternal(widget_host_view, initial_pos);
 }
 
 void TabContentsView::Activate() {
-  tab_contents_->delegate()->Activate();
+  tab_contents_->Activate();
 }
 
 void TabContentsView::Deactivate() {
-  tab_contents_->delegate()->Deactivate();
+  tab_contents_->Deactivate();
 }
 
 void TabContentsView::ShowCreatedFullscreenWidget(int route_id) {
   RenderWidgetHostView* widget_host_view =
       delegate_view_helper_.GetCreatedWidget(route_id);
   ShowCreatedFullscreenWidgetInternal(widget_host_view);
 }
 
 bool TabContentsView::PreHandleKeyboardEvent(
     const NativeWebKeyboardEvent& event, bool* is_keyboard_shortcut) {
@@ skipping 35 matching lines @@
 }
 
 void TabContentsView::ShowCreatedFullscreenWidgetInternal(
     RenderWidgetHostView* widget_host_view) {
   if (tab_contents_->delegate())
     tab_contents_->delegate()->RenderWidgetShowing();
 
   widget_host_view->InitAsFullscreen(tab_contents_->GetRenderWidgetHostView());
   widget_host_view->GetRenderWidgetHost()->Init();
 }