Add CompositingReasons to compositor layer types.

webkit/compositor_bindings/web_layer_impl.cc

Index: webkit/compositor_bindings/web_layer_impl.cc
diff --git a/webkit/compositor_bindings/web_layer_impl.cc b/webkit/compositor_bindings/web_layer_impl.cc
index 8eec32192a7672bbf8184788c4665080f93a6841..aa53aa6cdcbb9fcd06dcfc9f191330cc528c4045 100644
--- a/webkit/compositor_bindings/web_layer_impl.cc
+++ b/webkit/compositor_bindings/web_layer_impl.cc
@@ -9,6 +9,7 @@
 #include "cc/base/region.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_position_constraint.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebCompositingReasons.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebFloatPoint.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebFloatRect.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerPositionConstraint.h"
@@ -171,6 +172,11 @@ void WebLayerImpl::setDebugName(WebKit::WebString name) {
       UTF16ToASCII(base::string16(name.data(), name.length())));
 }
 
+void WebLayerImpl::setCompositingReasons(
+    WebKit::WebCompositingReasons reasons) {
+  layer_->SetCompositingReasons(reasons);
+}
+
 void WebLayerImpl::setAnimationDelegate(
       WebKit::WebAnimationDelegate* delegate) {
   layer_->set_layer_animation_delegate(delegate);