Add autoresize capability to chromium.

content/renderer/render_widget.cc

 // Copyright (c) 2011 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 "content/renderer/render_widget.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 242 matching lines @@
   // If there is a Send call on the stack, then it could be dangerous to close
   // now.  Post a task that only gets invoked when there are no nested message
   // loops.
   MessageLoop::current()->PostNonNestableTask(
       FROM_HERE, NewRunnableMethod(this, &RenderWidget::Close));
 
   // Balances the AddRef taken when we called AddRoute.
   Release();
 }
 
+void RenderWidget::setSize(const WebSize& new_size) {
+  size_ = new_size;

[darin (slow to review), 2011/11/30 23:31:00]

following this call, we should expect to get invalidations, right?  and those
trigger the ViewHostMsg_UpdateRect message.  SGTM.

[levin, 2011/12/01 20:18:06]

Yes.

+}
+
 void RenderWidget::OnResize(const gfx::Size& new_size,
                             const gfx::Rect& resizer_rect,
                             bool is_fullscreen) {
   // During shutdown we can just ignore this message.
   if (!webwidget_)
     return;
 
   // We shouldn't be asked to resize to our current size.
   DCHECK(size_ != new_size || resizer_rect_ != resizer_rect);
 
@@ skipping 1226 matching lines @@
   }
 }
 
 bool RenderWidget::WillHandleMouseEvent(const WebKit::WebMouseEvent& event) {
   return false;
 }
 
 bool RenderWidget::WebWidgetHandlesCompositorScheduling() const {
   return false;
 }