cc: Force layer tree tests to go idle before exiting.

cc/proxy.h

 // 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.
 
 #ifndef CC_PROXY_H_
 #define CC_PROXY_H_
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/time.h"
@@ skipping 80 matching lines @@
     // process.
     virtual void forceSerializeOnSwapBuffers() = 0;
 
     // Maximum number of sub-region texture updates supported for each commit.
     virtual size_t maxPartialTextureUpdates() const = 0;
 
     virtual void acquireLayerTextures() = 0;
 
     // Testing hooks
     virtual void loseOutputSurface() = 0;
+    virtual bool commitPendingForTesting() = 0;
 
 protected:
     explicit Proxy(scoped_ptr<Thread> implThread);
     friend class DebugScopedSetImplThread;
     friend class DebugScopedSetMainThread;
     friend class DebugScopedSetMainThreadBlocked;
 
 private:
     DISALLOW_COPY_AND_ASSIGN(Proxy);
 
@@ skipping 26 matching lines @@
 class DebugScopedSetMainThreadBlocked {
 public:
     explicit DebugScopedSetMainThreadBlocked(Proxy*) { }
     ~DebugScopedSetMainThreadBlocked() { }
 };
 #endif
 
 }
 
 #endif  // CC_PROXY_H_