Implement a method to access the non-composited content root layer picture pile.

cc/test/fake_proxy.h

Index: cc/test/fake_proxy.h
diff --git a/cc/test/fake_proxy.h b/cc/test/fake_proxy.h
index ba0014f4d0bd3969c065f67c5e1962e4befa9735..9b14b7cb9f23db896b01e5ff6673c8ff69b1eb55 100644
--- a/cc/test/fake_proxy.h
+++ b/cc/test/fake_proxy.h
@@ -5,12 +5,16 @@
 #ifndef CC_TEST_FAKE_PROXY_H_
 #define CC_TEST_FAKE_PROXY_H_
 
+#include "base/memory/ref_counted.h"
 #include "cc/layer_tree_host.h"
+#include "cc/picture_pile_impl.h"
 #include "cc/proxy.h"
 #include "cc/thread.h"
 
 namespace cc {
 
+class PictureLayer;
+
 class FakeProxy : public Proxy {
 public:
     explicit FakeProxy(scoped_ptr<Thread> implThread) : Proxy(implThread.Pass()) { }
@@ -39,6 +43,7 @@ public:
     virtual void acquireLayerTextures() OVERRIDE { }
     virtual void loseOutputSurface() OVERRIDE { }
     virtual bool commitPendingForTesting() OVERRIDE;
+    virtual scoped_refptr<PicturePileImpl> capturePicturePile(const PictureLayer* layer) OVERRIDE;
 
     virtual RendererCapabilities& rendererCapabilities();
     void setMaxPartialTextureUpdates(size_t);