Change Aura overlay scrollbars from solid color to painted scrollbars.

blimp/client/support/compositor/blimp_layer_tree_settings.cc

 // Copyright 2015 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 "blimp/client/support/compositor/blimp_layer_tree_settings.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 43 matching lines @@
   settings->initial_debug_state.show_property_changed_rects = false;
   settings->initial_debug_state.show_surface_damage_rects = false;
   settings->initial_debug_state.show_screen_space_rects = false;
   settings->initial_debug_state.SetRecordRenderingStats(false);
 
 #if defined(OS_ANDROID)
   if (base::SysInfo::IsLowEndDevice())
     settings->gpu_rasterization_enabled = false;
   settings->using_synchronous_renderer_compositor = false;
   settings->scrollbar_animator = cc::LayerTreeSettings::LINEAR_FADE;
-  settings->scrollbar_fade_delay_ms = 300;
-  settings->scrollbar_fade_resize_delay_ms = 2000;
-  settings->scrollbar_fade_duration_ms = 300;
+  settings->scrollbar_fade_delay = base::TimeDelta::FromMilliseconds(300);
+  settings->scrollbar_fade_resize_delay = base::TimeDelta::FromSeconds(2);
+  settings->scrollbar_fade_duration = base::TimeDelta::FromMilliseconds(300);
   settings->solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128);
   settings->renderer_settings.highp_threshold_min = 2048;
   settings->ignore_root_layer_flings = false;
   bool use_low_memory_policy = base::SysInfo::IsLowEndDevice();
   if (use_low_memory_policy) {
     // On low-end we want to be very carefull about killing other
     // apps. So initially we use 50% more memory to avoid flickering
     // or raster-on-demand.
     settings->max_memory_for_prepaint_percentage = 67;
 
     settings->renderer_settings.preferred_tile_format = cc::RGBA_4444;
   } else {
     // On other devices we have increased memory excessively to avoid
     // raster-on-demand already, so now we reserve 50% _only_ to avoid
     // raster-on-demand, and use 50% of the memory otherwise.
     settings->max_memory_for_prepaint_percentage = 50;
   }
   settings->renderer_settings.should_clear_root_render_pass = true;
 
   // TODO(danakj): Only do this on low end devices.
   settings->create_low_res_tiling = true;
 
 #elif !defined(OS_MACOSX)
   settings->scrollbar_animator = cc::LayerTreeSettings::LINEAR_FADE;
   settings->solid_color_scrollbar_color = SkColorSetARGB(128, 128, 128, 128);
-  settings->scrollbar_fade_delay_ms = 500;
-  settings->scrollbar_fade_resize_delay_ms = 500;
-  settings->scrollbar_fade_duration_ms = 300;
+  settings->scrollbar_fade_delay = base::TimeDelta::FromMilliseconds(500);
+  settings->scrollbar_fade_resize_delay =
+      base::TimeDelta::FromMilliseconds(500);
+  settings->scrollbar_fade_duration = base::TimeDelta::FromMilliseconds(300);
 
 // When pinching in, only show the pinch-viewport overlay scrollbars if the
 // page scale is at least some threshold away from the minimum. i.e. don't
 // show the pinch scrollbars when at minimum scale.
 // TODO(dtrainor): Update this since https://crrev.com/1267603004 landed.
 // settings->scrollbar_show_scale_threshold = 1.05f;
 #endif
 
   // Set the gpu memory policy.
   cc::ManagedMemoryPolicy& memory_policy = settings->gpu_memory_policy;
@@ skipping 105 matching lines @@
   }
 #endif
   settings->default_tile_size.SetSize(default_tile_size, default_tile_size);
 
   settings->renderer_settings.buffer_to_texture_target_map =
       BlimpGpuMemoryBufferManager::GetDefaultBufferToTextureTargetMap();
 }
 
 }  // namespace client
 }  // namespace blimp