cc: Move more functionality from host to LayerTreeImpl

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 "cc/layer_tree_host.h"
 
 #include "base/synchronization/lock.h"
 #include "cc/content_layer.h"
 #include "cc/content_layer_client.h"
 #include "cc/layer_impl.h"
@@ skipping 623 matching lines @@
         m_layerTreeHost->setViewportSize(gfx::Size(20, 20), gfx::Size(20, 20));
         m_layerTreeHost->setBackgroundColor(SK_ColorGRAY);
         m_layerTreeHost->setPageScaleFactorAndLimits(5, 5, 5);
 
         postSetNeedsCommitToMainThread();
     }
 
     virtual void commitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE
     {
         EXPECT_EQ(gfx::Size(20, 20), impl->layoutViewportSize());
-        EXPECT_EQ(SK_ColorGRAY, impl->backgroundColor());
+        EXPECT_EQ(SK_ColorGRAY, impl->activeTree()->background_color());
         EXPECT_EQ(5, impl->pageScaleFactor());
 
         endTest();
     }
 
     virtual void afterTest() OVERRIDE { }
 };
 
 TEST_F(LayerTreeHostTestCommit, runTest)
 {
@@ skipping 1358 matching lines @@
     LayerTreeSettings settings;
     settings.maxPartialTextureUpdates = 4;
 
     scoped_ptr<LayerTreeHost> host = LayerTreeHost::create(&client, settings, scoped_ptr<Thread>());
     EXPECT_TRUE(host->initializeRendererIfNeeded());
     EXPECT_EQ(0u, host->settings().maxPartialTextureUpdates);
 }
 
 }  // namespace
 }  // namespace cc