Merge Compositor's ScrollbarAnimationControllers into single class

cc/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/ui.gni")
 import("//cc/cc.gni")
 
 cc_component("cc") {
   sources = [
     "debug/benchmark_instrumentation.cc",
@@ skipping 52 matching lines @@
     "input/page_scale_animation.cc",
     "input/page_scale_animation.h",
     "input/scroll_elasticity_helper.cc",
     "input/scroll_elasticity_helper.h",
     "input/scroll_state.cc",
     "input/scroll_state.h",
     "input/scroll_state_data.cc",
     "input/scroll_state_data.h",
     "input/scrollbar_animation_controller.cc",
     "input/scrollbar_animation_controller.h",
-    "input/scrollbar_animation_controller_linear_fade.cc",
-    "input/scrollbar_animation_controller_linear_fade.h",
-    "input/scrollbar_animation_controller_thinning.cc",
-    "input/scrollbar_animation_controller_thinning.h",
     "input/selection.h",
     "input/single_scrollbar_animation_controller_thinning.cc",
     "input/single_scrollbar_animation_controller_thinning.h",
     "layers/append_quads_data.h",
     "layers/content_layer_client.h",
     "layers/draw_properties.cc",
     "layers/draw_properties.h",
     "layers/empty_content_layer_client.cc",
     "layers/empty_content_layer_client.h",
     "layers/heads_up_display_layer.cc",
@@ skipping 661 matching lines @@
     "base/rolling_time_delta_history_unittest.cc",
     "base/rtree_unittest.cc",
     "base/simple_enclosed_region_unittest.cc",
     "base/spiral_iterator_unittest.cc",
     "base/tiling_data_unittest.cc",
     "base/unique_notifier_unittest.cc",
     "debug/micro_benchmark_controller_unittest.cc",
     "debug/rendering_stats_unittest.cc",
     "input/browser_controls_offset_manager_unittest.cc",
     "input/scroll_state_unittest.cc",
-    "input/scrollbar_animation_controller_linear_fade_unittest.cc",
-    "input/scrollbar_animation_controller_thinning_unittest.cc",
+    "input/scrollbar_animation_controller_unittest.cc",
     "input/single_scrollbar_animation_controller_thinning_unittest.cc",
     "ipc/cc_param_traits_unittest.cc",
     "ipc/struct_traits_unittest.cc",
     "layers/heads_up_display_layer_impl_unittest.cc",
     "layers/heads_up_display_unittest.cc",
     "layers/layer_impl_unittest.cc",
     "layers/layer_iterator_unittest.cc",
     "layers/layer_list_iterator_unittest.cc",
     "layers/layer_position_constraint_unittest.cc",
     "layers/layer_unittest.cc",
@@ skipping 223 matching lines @@
   data = [
     "test/data/",
 
     # Needed for isolate script to execute.
     "//testing/scripts/common.py",
     "//testing/xvfb.py",
     "//testing/scripts/run_gtest_perf_test.py",
     "//tools/perf/generate_legacy_perf_dashboard_json.py",
   ]
 }