cc: Add threaded GPU rasterization.

cc/trees/layer_tree_host_unittest.cc

 // Copyright 2011 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 "cc/trees/layer_tree_host.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/synchronization/lock.h"
@@ skipping 2924 matching lines @@
     }
   }
 
   void DeferredInitializeAndRedraw(LayerTreeHostImpl* host_impl) {
     EXPECT_FALSE(did_initialize_gl_);
     // SetAndInitializeContext3D calls SetNeedsCommit.
     FakeOutputSurface* fake_output_surface =
         static_cast<FakeOutputSurface*>(host_impl->output_surface());
     scoped_refptr<TestContextProvider> context_provider =
         TestContextProvider::Create();  // Not bound to thread.
-    EXPECT_TRUE(
-        fake_output_surface->InitializeAndSetContext3d(context_provider));
+    scoped_refptr<TestContextProvider> worker_context_provider =
+        TestContextProvider::Create();  // Not bound to thread.
+    EXPECT_TRUE(fake_output_surface->InitializeAndSetContext3d(
+        context_provider, worker_context_provider));
     did_initialize_gl_ = true;
   }
 
   void ReleaseGLAndRedraw(LayerTreeHostImpl* host_impl) {
     EXPECT_TRUE(did_initialize_gl_);
     EXPECT_FALSE(did_release_gl_);
     // ReleaseGL calls SetNeedsCommit.
     static_cast<FakeOutputSurface*>(host_impl->output_surface())->ReleaseGL();
     did_release_gl_ = true;
   }
@@ skipping 3302 matching lines @@
 
   void AfterTest() override { EXPECT_TRUE(did_commit_); }
 
  private:
   bool did_commit_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestNoTasksBetweenWillAndDidCommit);
 
 }  // namespace cc