Turn off computation of the interest rect in cc in synchronized paint mode.

cc/trees/layer_tree_settings.cc

 // Copyright 2011 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.
 
 #include "cc/trees/layer_tree_settings.h"
 
 #include <GLES2/gl2.h>
 #include <limits>
 
 #include "base/command_line.h"
@@ skipping 15 matching lines @@
       main_frame_before_activation_enabled(false),
       using_synchronous_renderer_compositor(false),
       accelerated_animation_enabled(true),
       can_use_lcd_text(true),
       use_distance_field_text(false),
       gpu_rasterization_enabled(false),
       gpu_rasterization_forced(false),
       gpu_rasterization_msaa_sample_count(0),
       gpu_rasterization_skewport_target_time_in_seconds(0.2f),
       create_low_res_tiling(false),
+      blink_synchronized_painting_enabled(false),
       scrollbar_animator(NO_ANIMATOR),
       scrollbar_fade_delay_ms(0),
       scrollbar_fade_resize_delay_ms(0),
       scrollbar_fade_duration_ms(0),
       solid_color_scrollbar_color(SK_ColorWHITE),
       timeout_and_draw_when_animation_checkerboards(true),
       layer_transforms_should_scale_layer_contents(false),
       layers_always_allowed_lcd_text(false),
       minimum_contents_scale(0.0625f),
       low_res_contents_scale_factor(0.25f),
@@ skipping 41 matching lines @@
       timeout_and_draw_when_animation_checkerboards;
   scheduler_settings.using_synchronous_renderer_compositor =
       using_synchronous_renderer_compositor;
   scheduler_settings.throttle_frame_production = wait_for_beginframe_interval;
   scheduler_settings.background_frame_interval =
       base::TimeDelta::FromSecondsD(1.0 / background_animation_rate);
   return scheduler_settings;
 }
 
 }  // namespace cc