Making window.focus() work in Chrome

chrome/browser/renderer_host/render_widget_host.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/renderer_host/render_widget_host.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/histogram.h"
 #include "base/keyboard_codes.h"
@@ skipping 864 matching lines @@
   // Now send the next (coalesced) mouse wheel event.
   if (!coalesced_mouse_wheel_events_.empty()) {
     WebMouseWheelEvent next_wheel_event =
         coalesced_mouse_wheel_events_.front();
     coalesced_mouse_wheel_events_.pop_front();
     ForwardWheelEvent(next_wheel_event);
   }
 }
 
 void RenderWidgetHost::OnMsgFocus() {
-  // Only the user can focus a RenderWidgetHost.
+  // Only RenderViewHost can deal with that message.
   process()->ReceivedBadMessage(ViewHostMsg_Focus__ID);
 }
 
 void RenderWidgetHost::OnMsgBlur() {
-  if (view_) {
-    view_->Blur();
-  }
+  // Only RenderViewHost can deal with that message.
+  process()->ReceivedBadMessage(ViewHostMsg_Blur__ID);
 }
 
 void RenderWidgetHost::OnMsgSetCursor(const WebCursor& cursor) {
   if (!view_) {
     return;
   }
   view_->UpdateCursor(cursor);
 }
 
 void RenderWidgetHost::OnMsgImeUpdateTextInputState(
@@ skipping 264 matching lines @@
     // of this key event.
     if (!processed && !is_hidden_ && !front_item.skip_in_browser) {
       UnhandledKeyboardEvent(front_item);
 
       // WARNING: This RenderWidgetHost can be deallocated at this point
       // (i.e.  in the case of Ctrl+W, where the call to
       // UnhandledKeyboardEvent destroys this RenderWidgetHost).
     }
   }
 }