cc/blimp: Set up the framework for LayerTreeTests in remote mode.

cc/trees/layer_tree_host_unittest_proxy.cc

 // Copyright 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 "base/compiler_specific.h"
 #include "base/macros.h"
 #include "cc/test/fake_content_layer_client.h"
 #include "cc/test/fake_picture_layer.h"
 #include "cc/test/layer_tree_test.h"
 #include "cc/trees/proxy_impl.h"
 #include "cc/trees/proxy_main.h"
 
 namespace cc {
 
 class LayerTreeHostProxyTest : public LayerTreeTest {
  protected:
   void SetupTree() override {
     update_check_layer_ = FakePictureLayer::Create(&client_);
     layer_tree()->SetRootLayer(update_check_layer_);
     LayerTreeTest::SetupTree();
     client_.set_bounds(update_check_layer_->bounds());
   }
 
   FakePictureLayer* update_check_layer() const {
     return update_check_layer_.get();
   }
 
-  ProxyMain* GetProxyMain() const {
+  ProxyMain* GetProxyMain() {
     DCHECK(HasImplThread());
     return static_cast<ProxyMain*>(proxy());
   }
 
  private:
   FakeContentLayerClient client_;
   scoped_refptr<FakePictureLayer> update_check_layer_;
 };
 
 class LayerTreeHostProxyTestSetNeedsCommit : public LayerTreeHostProxyTest {
@@ skipping 375 matching lines @@
  private:
   base::Lock activate_blocked_lock_;
   bool activate_blocked_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostProxyTestCommitWaitsForActivationMFBA);
 };
 
 MULTI_THREAD_TEST_F(LayerTreeHostProxyTestCommitWaitsForActivationMFBA);
 
 }  // namespace cc