A speculative Revert for r165872 - Remove static thread pointers from CC, attempt 2

cc/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 "config.h"
 
 #include "cc/layer_tree_host.h"
 
 #include "base/synchronization/lock.h"
 #include "cc/content_layer.h"
@@ skipping 2843 matching lines @@
 
         postSetNeedsCommitToMainThread();
     }
 
     void postEvictTextures()
     {
         if (implThread()) {
             implThread()->postTask(base::Bind(&LayerTreeHostTestLostContextAfterEvictTextures::evictTexturesOnImplThread,
                                               base::Unretained(this)));
         } else {
-            DebugScopedSetImplThread impl(proxy());
+            DebugScopedSetImplThread impl;
             evictTexturesOnImplThread();
         }
     }
 
     void evictTexturesOnImplThread()
     {
         DCHECK(m_implForEvictTextures);
         m_implForEvictTextures->enforceManagedMemoryPolicy(ManagedMemoryPolicy(0));
     }
 
@@ skipping 389 matching lines @@
     int m_numCommitsDeferred;
     int m_numCompleteCommits;
 };
 
 TEST_F(LayerTreeHostTestDeferCommits, runMultiThread)
 {
     runTest(true);
 }
 
 } // namespace