Initial checkin of chromecast content embedder (cast_shell) and related build scripts.

chromecast/ui/gl/gl_context_cast.cc

+// Copyright (c) 2014 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 "ui/gl/gl_context.h"
+
+#include "ui/gl/gl_context_stub.h"
+#include "ui/gl/gl_implementation.h"
+
+namespace gfx {
+
+scoped_refptr<GLContext> GLContext::CreateGLContext(
+    GLShareGroup* share_group,
+    GLSurface* compatible_surface,
+    GpuPreference gpu_preference) {
+  switch (GetGLImplementation()) {
+    case kGLImplementationMockGL:
+      return new GLContextStub;
+    default:
+      return NULL;
+  }
+}
+
+}  // namespace gfx