Add support for (de)serializing LayerSelectionBound.

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_host_unittest.cc',
       'animation/animation_player_unittest.cc',
@@ skipping 16 matching lines @@
       'base/region_unittest.cc',
       'base/rolling_time_delta_history_unittest.cc',
       'base/rtree_unittest.cc',
       'base/simple_enclosed_region_unittest.cc',
       'base/tiling_data_unittest.cc',
       'base/unique_notifier_unittest.cc',
       'debug/frame_timing_tracker_unittest.cc',
       'debug/layer_tree_debug_state_unittest.cc',
       'debug/micro_benchmark_controller_unittest.cc',
       'debug/rendering_stats_unittest.cc',
+      'input/layer_selection_bound_unittest.cc',
       'input/scroll_state_unittest.cc',
       'input/top_controls_manager_unittest.cc',
       'layers/delegated_frame_provider_unittest.cc',
       'layers/delegated_frame_resource_collection_unittest.cc',
       'layers/delegated_renderer_layer_impl_unittest.cc',
       'layers/delegated_renderer_layer_unittest.cc',
       'layers/heads_up_display_layer_impl_unittest.cc',
       'layers/heads_up_display_unittest.cc',
       'layers/io_surface_layer_impl_unittest.cc',
       'layers/layer_impl_unittest.cc',
@@ skipping 446 matching lines @@
                   '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
                 ],
               }
             ],
           ],
         },
       ],
     }],
   ],
 }