SetNeedsRedraw directly when updating a visible tile.

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.
 
 component("cc") {
   sources = [
     "animation/animation.cc",
     "animation/animation.h",
     "animation/animation_curve.cc",
     "animation/animation_curve.h",
@@ skipping 524 matching lines @@
     "test/fake_output_surface_client.cc",
     "test/fake_output_surface_client.h",
     "test/fake_painted_scrollbar_layer.cc",
     "test/fake_painted_scrollbar_layer.h",
     "test/fake_picture_layer.cc",
     "test/fake_picture_layer.h",
     "test/fake_picture_layer_impl.cc",
     "test/fake_picture_layer_impl.h",
     "test/fake_picture_layer_tiling_client.cc",
     "test/fake_picture_layer_tiling_client.h",
+    "test/fake_picture_pile.cc",
     "test/fake_picture_pile.h",
     "test/fake_picture_pile_impl.cc",
     "test/fake_picture_pile_impl.h",
     "test/fake_proxy.cc",
     "test/fake_proxy.h",
     "test/fake_renderer_client.cc",
     "test/fake_renderer_client.h",
     "test/fake_rendering_stats_instrumentation.h",
     "test/fake_scoped_ui_resource.cc",
     "test/fake_scoped_ui_resource.h",
@@ skipping 279 matching lines @@
     "//gpu/command_buffer/common:gles2_utils",
     "//media",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",
     "//testing/perf",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 }