Use WebKit compositor in ui::Layer

BUG=99524
TEST=compositor_unittests


Review URL: http://codereview.chromium.org/8222028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@106606 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 14 insertions, 1 deletions

diff --git a/ui/gfx/compositor/compositor.cc b/ui/gfx/compositor/compositor.cc
index 6f7e5db..87aa06e 100644
--- a/ui/gfx/compositor/compositor.cc
+++ b/ui/gfx/compositor/compositor.cc
@@ -25,10 +25,15 @@ Compositor::Compositor(CompositorDelegate* delegate, const gfx::Size& size)
 Compositor::~Compositor() {
 }
 
+void Compositor::ScheduleDraw() {
+  delegate_->ScheduleDraw();
+}
+
 void Compositor::SetRootLayer(Layer* root_layer) {
   root_layer_ = root_layer;
   if (!root_layer_->GetCompositor())
     root_layer_->SetCompositor(this);
+  OnRootLayerChanged();
 }
 
 void Compositor::Draw(bool force_clear) {
@@ -36,7 +41,7 @@ void Compositor::Draw(bool force_clear) {
     return;
 
   NotifyStart(force_clear);
-  root_layer_->DrawTree();
+  DrawTree();
   NotifyEnd();
 }
 
@@ -52,6 +57,14 @@ bool Compositor::HasObserver(CompositorObserver* observer) {
   return observer_list_.HasObserver(observer);
 }
 
+void Compositor::OnRootLayerChanged() {
+  ScheduleDraw();
+}
+
+void Compositor::DrawTree() {
+  root_layer_->DrawTree();
+}
+
 void Compositor::NotifyStart(bool clear) {
   OnNotifyStart(clear);
 }