Adding drawable to CRD andorid and iOS gl rendering pipeline.

remoting/client/display/fake_canvas.cc

Index: remoting/client/display/fake_canvas.cc
diff --git a/remoting/client/display/fake_canvas.cc b/remoting/client/display/fake_canvas.cc
new file mode 100644
index 0000000000000000000000000000000000000000..17fcb8ab67c82f62c3721f4f3ee6fe5267e034c9
--- /dev/null
+++ b/remoting/client/display/fake_canvas.cc
@@ -0,0 +1,17 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "remoting/client/display/fake_canvas.h"
+
+namespace remoting {
+
+int FakeCanvas::GetVersion() const {
+  return 0;
+}
+
+int FakeCanvas::GetMaxTextureSize() const {
+  return 0;
+}
+
+}  // namespace remoting