Removing the code which enables using the renderer dib in the browser backing

store as this hurts performance.

Bug=1314407


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@858 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 7 insertions, 16 deletions

diff --git a/chrome/renderer/render_widget.cc b/chrome/renderer/render_widget.cc
index 2560438..90ec7c6 100644
--- a/chrome/renderer/render_widget.cc
+++ b/chrome/renderer/render_widget.cc
@@ -296,24 +296,15 @@ void RenderWidget::OnWasRestored(bool needs_repainting) {
   DidInvalidateRect(webwidget_, gfx::Rect(size_.width(), size_.height()));
 }
 
-void RenderWidget::OnPaintRectAck(bool drop_bitmap) {
+void RenderWidget::OnPaintRectAck() {
   DCHECK(paint_reply_pending());
   paint_reply_pending_ = false;
-
-  if (drop_bitmap) {
-    if (current_paint_buf_) {
-      RenderProcess::DeleteSharedMem(current_paint_buf_);
-    }
-  } else {
-    // If we sent a PaintRect message with a zero-sized bitmap, then
-    // we should have no current paint buf.
-    if (current_paint_buf_) {
-      RenderProcess::FreeSharedMemory(current_paint_buf_);
-    }
+  // If we sent a PaintRect message with a zero-sized bitmap, then
+  // we should have no current paint buf.
+  if (current_paint_buf_) {
+    RenderProcess::FreeSharedMemory(current_paint_buf_);
+    current_paint_buf_ = NULL;
   }
-
-  current_paint_buf_ = NULL;
-
   // Continue painting if necessary...
   DoDeferredPaint();
 }
diff --git a/chrome/renderer/render_widget.h b/chrome/renderer/render_widget.h
index 48b40ee..adb1033 100644
--- a/chrome/renderer/render_widget.h
+++ b/chrome/renderer/render_widget.h
@@ -133,7 +133,7 @@ class RenderWidget : public IPC::Channel::Listener,
   void OnResize(const gfx::Size& new_size);
   void OnWasHidden();
   void OnWasRestored(bool needs_repainting);
-  void OnPaintRectAck(bool drop_bitmap);
+  void OnPaintRectAck();
   void OnScrollRectAck();
   void OnHandleInputEvent(const IPC::Message& message);
   void OnMouseCaptureLost();