Add a GPU rasterization hint to cc::PictureLayer

This adds a GPU rasterization hint to PictureLayer
and PictureLayerImpl. When using hybrid
rasterization (that is, when running with
--enable-gpu-rasterization), only layers with a
GPU rasterization hint are rasterized on the GPU.

BUG=329722

Review URL: https://codereview.chromium.org/192973002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256304 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 8 insertions, 0 deletions

diff --git a/webkit/renderer/compositor_bindings/web_content_layer_impl.cc b/webkit/renderer/compositor_bindings/web_content_layer_impl.cc
index 5a51481..9ae09fe 100644
--- a/webkit/renderer/compositor_bindings/web_content_layer_impl.cc
+++ b/webkit/renderer/compositor_bindings/web_content_layer_impl.cc
@@ -46,6 +46,13 @@ void WebContentLayerImpl::setDrawCheckerboardForMissingTiles(bool enable) {
   layer_->layer()->SetDrawCheckerboardForMissingTiles(enable);
 }
 
+void WebContentLayerImpl::setHasGpuRasterizationHint(bool has_hint) {
+  if (WebLayerImpl::UsingPictureLayer()) {
+    static_cast<PictureLayer*>(layer_->layer())
+        ->SetHasGpuRasterizationHint(has_hint);
+  }
+}
+
 void WebContentLayerImpl::PaintContents(SkCanvas* canvas,
                                         const gfx::Rect& clip,
                                         gfx::RectF* opaque) {
diff --git a/webkit/renderer/compositor_bindings/web_content_layer_impl.h b/webkit/renderer/compositor_bindings/web_content_layer_impl.h
index f8b64f9..5ff88a3 100644
--- a/webkit/renderer/compositor_bindings/web_content_layer_impl.h
+++ b/webkit/renderer/compositor_bindings/web_content_layer_impl.h
@@ -30,6 +30,7 @@ class WebContentLayerImpl : public blink::WebContentLayer,
   virtual blink::WebLayer* layer();
   virtual void setDoubleSided(bool double_sided);
   virtual void setDrawCheckerboardForMissingTiles(bool checkerboard);
+  virtual void setHasGpuRasterizationHint(bool has_hint);
 
  protected:
   virtual ~WebContentLayerImpl();