compositor-worker: Introduce WebCompositorMutableState

cc/blink/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("//testing/test.gni")
 
 # GYP version: //cc/blink/cc_blink.gyp:cc_blink
 component("blink") {
   output_name = "cc_blink"
 
   sources = [
     "cc_blink_export.h",
     "context_provider_web_context.h",
     "scrollbar_impl.cc",
     "scrollbar_impl.h",
     "web_animation_curve_common.cc",
     "web_animation_curve_common.h",
     "web_animation_impl.cc",
     "web_animation_impl.h",
     "web_compositor_animation_player_impl.cc",
     "web_compositor_animation_player_impl.h",
     "web_compositor_animation_timeline_impl.cc",
     "web_compositor_animation_timeline_impl.h",
+    "web_compositor_mutable_state_impl.cc",
+    "web_compositor_mutable_state_impl.h",
+    "web_compositor_mutable_state_provider_impl.cc",
+    "web_compositor_mutable_state_provider_impl.h",
     "web_compositor_support_impl.cc",
     "web_compositor_support_impl.h",
     "web_content_layer_impl.cc",
     "web_content_layer_impl.h",
     "web_display_item_list_impl.cc",
     "web_display_item_list_impl.h",
     "web_external_bitmap_impl.cc",
     "web_external_bitmap_impl.h",
     "web_external_texture_layer_impl.cc",
     "web_external_texture_layer_impl.h",
@@ skipping 38 matching lines @@
   ]
 }
 
 # GYP version: //cc/blink/cc_blink_tests.gyp:cc_blink_unittests
 # TODO(GYP): make linking work on the mac.
 if (!is_mac) {
   test("cc_blink_unittests") {
     sources = [
       "web_animation_unittest.cc",
       "web_compositor_animation_player_unittest.cc",
+      "web_compositor_mutable_state_impl_unittest.cc",
       "web_float_animation_curve_unittest.cc",
       "web_layer_impl_fixed_bounds_unittest.cc",
 
       # Setup.
       "test/cc_blink_test_suite.cc",
       "test/run_all_unittests.cc",
     ]
 
     deps = [
       ":blink",
       "//base/test:test_support",
       "//base/third_party/dynamic_annotations",
       "//cc",
       "//cc:test_support",
       "//skia",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/WebKit/public:blink",
       "//ui/gfx:test_support",
       "//ui/gfx/geometry",
     ]
   }
 }