Rename classes related to top controls

This change renames TopControls* to BrowserControls*. This is done
to represent the fact that the toolbar/controls for the browser are
not necessarily at the top of the screen.

BUG=652892
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel

Review-Url: https://codereview.chromium.org/2443613002
Cr-Commit-Position: refs/heads/master@{#428054}

diff --git a/cc/BUILD.gn b/cc/BUILD.gn
index 1e2fbda..00ede9cc 100644
--- a/cc/BUILD.gn
+++ b/cc/BUILD.gn

@@ -108,6 +108,9 @@
     "debug/unittest_only_benchmark.h",
     "debug/unittest_only_benchmark_impl.cc",
     "debug/unittest_only_benchmark_impl.h",
+    "input/browser_controls_offset_manager.cc",
+    "input/browser_controls_offset_manager.h",
+    "input/browser_controls_offset_manager_client.h",
     "input/input_handler.cc",
     "input/input_handler.h",
     "input/layer_selection_bound.cc",
@@ -127,9 +130,6 @@
     "input/scrollbar_animation_controller_thinning.cc",
     "input/scrollbar_animation_controller_thinning.h",
     "input/selection.h",
-    "input/top_controls_manager.cc",
-    "input/top_controls_manager.h",
-    "input/top_controls_manager_client.h",
     "layers/append_quads_data.h",
     "layers/content_layer_client.h",
     "layers/draw_properties.cc",
@@ -853,11 +853,11 @@
     "debug/layer_tree_debug_state_unittest.cc",
     "debug/micro_benchmark_controller_unittest.cc",
     "debug/rendering_stats_unittest.cc",
+    "input/browser_controls_offset_manager_unittest.cc",
     "input/layer_selection_bound_unittest.cc",
     "input/scroll_state_unittest.cc",
     "input/scrollbar_animation_controller_linear_fade_unittest.cc",
     "input/scrollbar_animation_controller_thinning_unittest.cc",
-    "input/top_controls_manager_unittest.cc",
     "ipc/cc_param_traits_unittest.cc",
     "ipc/struct_traits_unittest.cc",
     "layers/heads_up_display_layer_impl_unittest.cc",