Commiting the changes from my previous cl that are specific to not including ...

chrome/renderer/render_widget.cc

Index: chrome/renderer/render_widget.cc
===================================================================
--- chrome/renderer/render_widget.cc	(revision 9176)
+++ chrome/renderer/render_widget.cc	(working copy)
@@ -10,6 +10,7 @@
 #include "base/message_loop.h"
 #include "base/scoped_ptr.h"
 #include "build/build_config.h"
+#include "chrome/common/render_messages.h"
 #include "chrome/renderer/render_process.h"
 #include "skia/ext/platform_canvas.h"
 
@@ -727,6 +728,26 @@
   DidInvalidateRect(webwidget_, repaint_rect);
 }
 
+bool RenderWidget::next_paint_is_resize_ack() const {
+  return ViewHostMsg_PaintRect_Flags::is_resize_ack(next_paint_flags_);
+}
+
+bool RenderWidget::next_paint_is_restore_ack() const {
+  return ViewHostMsg_PaintRect_Flags::is_restore_ack(next_paint_flags_);
+}
+
+void RenderWidget::set_next_paint_is_resize_ack() {
+  next_paint_flags_ |= ViewHostMsg_PaintRect_Flags::IS_RESIZE_ACK;
+}
+
+void RenderWidget::set_next_paint_is_restore_ack() {
+  next_paint_flags_ |= ViewHostMsg_PaintRect_Flags::IS_RESTORE_ACK;
+}
+
+void RenderWidget::set_next_paint_is_repaint_ack() {
+  next_paint_flags_ |= ViewHostMsg_PaintRect_Flags::IS_REPAINT_ACK;
+}
+
 void RenderWidget::UpdateIME() {
   // If a browser process does not have IMEs, its IMEs are not active, or there
   // are not any attached widgets.