Remove static thread pointers from CC

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 "CCGraphicsContext.h"
 #include "CCThreadedTest.h"
@@ skipping 2849 matching lines @@
 
     private:
         LayerTreeHostTestLostContextAfterEvictTextures* m_test;
     };
 
     void postEvictTextures()
     {
         if (webThread())
             webThread()->postTask(new EvictTexturesTask(this));
         else {
-            DebugScopedSetImplThread impl;
+            DebugScopedSetImplThread impl(proxy());
             evictTexturesOnImplThread();
         }
     }
 
     void evictTexturesOnImplThread()
     {
         DCHECK(m_implForEvictTextures);
         m_implForEvictTextures->enforceManagedMemoryPolicy(ManagedMemoryPolicy(0));
     }
 
@@ skipping 296 matching lines @@
     int m_numCommitComplete;
     int m_numDrawLayers;
 };
 
 TEST_F(LayerTreeHostTestContinuousAnimate, runMultiThread)
 {
     runTest(true);
 }
 
 } // namespace