Remove root layer specialness in calculateDrawTransforms

cc/test/layer_tree_test_common.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_TEST_LAYER_TREE_TEST_COMMON_H_
 #define CC_TEST_LAYER_TREE_TEST_COMMON_H_
 
 #include "cc/layer_tree_host.h"
 #include "base/hash_tables.h"
 #include "cc/layer_tree_host_impl.h"
@@ skipping 58 matching lines @@
 public:
     virtual ~ThreadedTest();
 
     virtual void afterTest() = 0;
     virtual void beginTest() = 0;
 
     void endTest();
     void endTestAfterDelay(int delayMilliseconds);
 
     void postSetNeedsAnimateToMainThread();
-    void postAddAnimationToMainThread();
+    void postAddAnimationToMainThread(cc::Layer*);
     void postAddInstantAnimationToMainThread();
     void postSetNeedsCommitToMainThread();
     void postAcquireLayerTextures();
     void postSetNeedsRedrawToMainThread();
     void postSetNeedsAnimateAndCommitToMainThread();
     void postSetVisibleToMainThread(bool visible);
     void postDidAddAnimationToMainThread();
 
     void doBeginTest();
     void timeout();
 
     void clearTimeout() { m_timeoutTask = 0; }
 
     cc::LayerTreeHost* layerTreeHost() { return m_layerTreeHost.get(); }
 
 protected:
     ThreadedTest();
 
     virtual void initializeSettings(cc::LayerTreeSettings&) { }
 
     virtual void scheduleComposite() OVERRIDE;
 
     void realEndTest();
 
     void dispatchSetNeedsAnimate();
     void dispatchAddInstantAnimation();
-    void dispatchAddAnimation();
+    void dispatchAddAnimation(cc::Layer*);
     void dispatchSetNeedsAnimateAndCommit();
     void dispatchSetNeedsCommit();
     void dispatchAcquireLayerTextures();
     void dispatchSetNeedsRedraw();
     void dispatchSetVisible(bool);
     void dispatchComposite();
     void dispatchDidAddAnimation();
 
     virtual void runTest(bool threaded);
     WebKit::WebThread* webThread() const { return m_webThread.get(); }
@@ skipping 82 matching lines @@
     TEST_F(TEST_FIXTURE_NAME, runSingleThread)            \
     {                                                     \
         runTest(false);                                   \
     }                                                     \
     TEST_F(TEST_FIXTURE_NAME, runMultiThread)             \
     {                                                     \
         runTest(true);                                    \
     }
 
 #endif // CC_TEST_LAYER_TREE_TEST_COMMON_H_