Revert of cc: Delete all the RendererCapabilities.

cc/test/fake_proxy.cc

Index: cc/test/fake_proxy.cc
diff --git a/cc/test/fake_proxy.cc b/cc/test/fake_proxy.cc
index 4a1c2296c0c18e58862037552dd806f17852b392..080be12aa705d381db576138460e117896f83c8a 100644
--- a/cc/test/fake_proxy.cc
+++ b/cc/test/fake_proxy.cc
@@ -18,6 +18,14 @@
   return false;
 }
 
+const RendererCapabilities& FakeProxy::GetRendererCapabilities() const {
+  return capabilities_;
+}
+
+RendererCapabilities& FakeProxy::GetRendererCapabilities() {
+  return capabilities_;
+}
+
 void FakeProxy::ReleaseOutputSurface() {}
 
 bool FakeProxy::BeginMainFrameRequested() const { return false; }