[cc] Make LayerImpls point at LayerTreeImpl instead of LTHI

cc/layer_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.h"
 
 #include "cc/keyframed_animation_curve.h"
 #include "cc/layer_impl.h"
 #include "cc/layer_painter.h"
 #include "cc/layer_tree_host.h"
@@ skipping 541 matching lines @@
     EXPECT_FALSE(testLayer->needsDisplay());
 
     // Test properties that should call setNeedsDisplay and setNeedsCommit
     EXPECT_SET_NEEDS_COMMIT(1, testLayer->setBounds(gfx::Size(5, 10)));
     EXPECT_TRUE(testLayer->needsDisplay());
 }
 
 TEST_F(LayerTest, verifyPushPropertiesAccumulatesUpdateRect)
 {
     scoped_refptr<Layer> testLayer = Layer::create();
-    scoped_ptr<LayerImpl> implLayer = LayerImpl::create(&m_hostImpl, 1);
+    scoped_ptr<LayerImpl> implLayer = LayerImpl::create(m_hostImpl.activeTree(), 1);
 
     testLayer->setNeedsDisplayRect(gfx::RectF(gfx::PointF(), gfx::SizeF(5, 5)));
     testLayer->pushPropertiesTo(implLayer.get());
     EXPECT_FLOAT_RECT_EQ(gfx::RectF(gfx::PointF(), gfx::SizeF(5, 5)), implLayer->updateRect());
 
     // The LayerImpl's updateRect should be accumulated here, since we did not do anything to clear it.
     testLayer->setNeedsDisplayRect(gfx::RectF(gfx::PointF(10, 10), gfx::SizeF(5, 5)));
     testLayer->pushPropertiesTo(implLayer.get());
     EXPECT_FLOAT_RECT_EQ(gfx::RectF(gfx::PointF(), gfx::SizeF(15, 15)), implLayer->updateRect());
 
@@ skipping 251 matching lines @@
     scoped_refptr<MockLayer> layer(new MockLayer);
     EXPECT_FALSE(layer->needsDisplay());
     layer->setBounds(gfx::Size(0, 10));
     EXPECT_FALSE(layer->needsDisplay());
     layer->setBounds(gfx::Size(10, 10));
     EXPECT_TRUE(layer->needsDisplay());
 }
 
 }  // namespace
 }  // namespace cc