SetNeedsRedraw directly when updating a visible tile.

cc/cc_tests.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
     'cc_unit_tests_source_files': [
       'animation/animation_unittest.cc',
       'animation/keyframed_animation_curve_unittest.cc',
@@ skipping 152 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 247 matching lines @@
             'variables': {
               'test_suite_name': 'cc_perftests',
             },
             'includes': [ '../build/apk_test.gypi' ],
           },
         ],
       }
     ]
   ],
 }