Flash white instead of black when a new tab is opened.

When a new tab is opened there is a delay associated with getting external textures from webkit. During that time the tab contents are painting using a non accelerated path.
Draw a white texture instead of a black one.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/8136007
Patch from Peter Kotwicz <pkotwicz@chromium.org>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@104287 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 1 deletions

diff --git a/chrome/browser/renderer_host/render_widget_host_view_views.cc b/chrome/browser/renderer_host/render_widget_host_view_views.cc
index 9ad6ce6..ab3c6d9 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_views.cc
+++ b/chrome/browser/renderer_host/render_widget_host_view_views.cc
@@ -793,9 +793,12 @@ views::View* RenderWidgetHostViewViews::GetOwnerViewOfTextInputClient() {
 }
 
 void RenderWidgetHostViewViews::OnPaint(gfx::Canvas* canvas) {
-  if (is_hidden_ || !host_ || host_->is_accelerated_compositing_active())
+  if (is_hidden_ || !host_)
     return;
 
+  DCHECK(!host_->is_accelerated_compositing_active() ||
+         get_use_acceleration_when_possible());
+
   // Paint a "hole" in the canvas so that the render of the web page is on
   // top of whatever else has already been painted in the views hierarchy.
   // Later views might still get to paint on top.
@@ -864,6 +867,10 @@ void RenderWidgetHostViewViews::OnPaint(gfx::Canvas* canvas) {
   } else {
     if (whiteout_start_time_.is_null())
       whiteout_start_time_ = base::TimeTicks::Now();
+
+    if (get_use_acceleration_when_possible())
+      canvas->FillRectInt(SK_ColorWHITE, 0, 0,
+                          bounds().width(), bounds().height());
   }
 }