Rename classes related to top controls

cc/trees/layer_tree_host_common_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/trees/layer_tree_host_common.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 6959 matching lines @@
       sticky_pos_impl->ScreenSpaceTransform().To2dTranslation());
 
   // Once we scroll past its initial location, it sticks there.
   SetScrollOffsetDelta(scroller_impl, gfx::Vector2dF(0.f, 150.f));
   ExecuteCalculateDrawProperties(root_impl);
   EXPECT_VECTOR2DF_EQ(
       gfx::Vector2dF(0.f, 0.f),
       sticky_pos_impl->ScreenSpaceTransform().To2dTranslation());
 }
 
-TEST_F(LayerTreeHostCommonTest, StickyPositionBottomHideTopControls) {
+TEST_F(LayerTreeHostCommonTest, StickyPositionBottomHideBrowserControls) {
   scoped_refptr<Layer> root = Layer::Create();
   scoped_refptr<Layer> scroller = Layer::Create();
   scoped_refptr<Layer> sticky_pos = Layer::Create();
   root->AddChild(scroller);
   scroller->AddChild(sticky_pos);
   host()->SetRootLayer(root);
   scroller->SetScrollClipLayerId(root->id());
   host()->GetLayerTree()->RegisterViewportLayers(nullptr, root, scroller,
                                                  nullptr);
 
@@ skipping 1366 matching lines @@
                                   &task_graph_runner);
 
   // Set two layers: the root layer clips it's child,
   // the child draws its content.
 
   gfx::Size root_size = gfx::Size(300, 500);
 
   // Sublayer should be bigger than the root enlarged by bounds_delta.
   gfx::Size sublayer_size = gfx::Size(300, 1000);
 
-  // Device viewport accomidated the root and the top controls.
+  // Device viewport accomidated the root and the browser controls.
   gfx::Size device_viewport_size = gfx::Size(300, 600);
 
   host_impl.SetViewportSize(device_viewport_size);
   host_impl.active_tree()->SetRootLayerForTesting(
       LayerImpl::Create(host_impl.active_tree(), 1));
 
   LayerImpl* root = host_impl.active_tree()->root_layer_for_testing();
   root->SetBounds(root_size);
   root->SetMasksToBounds(true);
 
@@ skipping 1961 matching lines @@
   EXPECT_EQ(scroll_child6.id, grand_child10->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, parent3->scroll_tree_index());
   EXPECT_EQ(scroll_child7.id, child8->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, parent4->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, child9->scroll_tree_index());
   EXPECT_EQ(scroll_root1.id, grand_child12->scroll_tree_index());
 }
 
 }  // namespace
 }  // namespace cc