- Add off-screen rendering support on Windows. This involves a number of new CefBrowser and CefHandler methods. See the "Off-Screen Rendering Example" in cefclient for example usage.

- Add CefRunMessageLoop() for efficient message loop usage and modify cefclient to use it.
- Add CefHandler::HandleNavStateChange() for back/forward state notifications and modify cefclient to use it.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@208 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

patch/patches/base.patch

@@ -0,0 +1,33 @@
+Index: message_loop.cc
+===================================================================
+--- message_loop.cc	(revision 74933)
++++ message_loop.cc	(working copy)
+@@ -287,9 +287,13 @@
+ }
+ 
+ void MessageLoop::AssertIdle() const {
++  DCHECK(IsIdle());
++}
++
++bool MessageLoop::IsIdle() const {
+   // We only check |incoming_queue_|, since we don't want to lock |work_queue_|.
+   base::AutoLock lock(incoming_queue_lock_);
+-  DCHECK(incoming_queue_.empty());
++  return incoming_queue_.empty();
+ }
+ 
+ //------------------------------------------------------------------------------
+Index: message_loop.h
+===================================================================
+--- message_loop.h	(revision 74933)
++++ message_loop.h	(working copy)
+@@ -318,6 +318,9 @@
+   // Asserts that the MessageLoop is "idle".
+   void AssertIdle() const;
+ 
++  // Returns true if the MessageLoop is "idle".
++  bool IsIdle() const;
++
+   //----------------------------------------------------------------------------
+  protected:
+   struct RunState {