cc: Route offscreen context creation for compositor to the browser.

cc/resource_provider.h

Index: cc/resource_provider.h
diff --git a/cc/resource_provider.h b/cc/resource_provider.h
index ead62a375e82b647bd79ba792e5150463bfeed3a..29b071a41642f38fc49625f566e6c3a6c4efeeed 100644
--- a/cc/resource_provider.h
+++ b/cc/resource_provider.h
@@ -24,6 +24,8 @@
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/gfx/size.h"
 
+class GrContext;
+
 namespace WebKit {
 class WebGraphicsContext3D;
 }
@@ -35,6 +37,7 @@ class Vector2d;
 
 namespace cc {
 
+class GaneshContextProvider;
 class TextureUploader;
 
 // This class is not thread-safe and can only be called from the thread it was
@@ -261,6 +264,9 @@ public:
     // Indicates if we can currently lock this resource for write.
     bool canLockForWrite(ResourceId);
 
+    GaneshContextProvider* ganeshContextProvider() { return m_ganeshContextProvider.get(); }
+    void setGaneshContexts(WebKit::WebGraphicsContext3D* context3d, GrContext* grContext);
+
 private:
     struct Resource {
         Resource();
@@ -332,6 +338,8 @@ private:
     int m_maxTextureSize;
     GLenum m_bestTextureFormat;
 
+    scoped_ptr<GaneshContextProvider> m_ganeshContextProvider;
+
     base::ThreadChecker m_threadChecker;
 
     scoped_refptr<Fence> m_currentReadLockFence;