Fixing crash in PictureLayerImpl::MarkVisibleResourcesAsRequired when low-res tiles are disabled

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 <limits>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 
 namespace cc {
 
-LayerTreeSettings::LayerTreeSettings()
-    : impl_side_painting(false),
+LayerTreeSettings::LayerTreeSettings(
+      bool impl_side_painting_,
+      bool create_low_res_tiling_)
+    : impl_side_painting(impl_side_painting_),
       allow_antialiasing(true),
       throttle_frame_production(true),
       begin_impl_frame_scheduling_enabled(false),
       main_frame_before_draw_enabled(true),
       main_frame_before_activation_enabled(false),
       using_synchronous_renderer_compositor(false),
       report_overscroll_only_for_scrollable_axes(false),
       per_tile_painting_enabled(false),
       partial_swap_enabled(false),
       accelerated_animation_enabled(true),
       can_use_lcd_text(true),
       should_clear_root_render_pass(true),
       rasterization_site(CpuRasterization),
-      create_low_res_tiling(true),
+      create_low_res_tiling(create_low_res_tiling_),
       scrollbar_animator(NoAnimator),
       scrollbar_linear_fade_delay_ms(300),
       scrollbar_linear_fade_length_ms(300),
       solid_color_scrollbar_color(SK_ColorWHITE),
       calculate_top_controls_position(false),
       timeout_and_draw_when_animation_checkerboards(true),
       maximum_number_of_failed_draws_before_draw_is_forced_(3),
       layer_transforms_should_scale_layer_contents(false),
       minimum_contents_scale(0.0625f),
       low_res_contents_scale_factor(0.25f),
@@ skipping 17 matching lines @@
       strict_layer_property_change_checking(false),
       use_map_image(false),
       ignore_root_layer_flings(false),
       use_rgba_4444_textures(false),
       touch_hit_testing(true),
       texture_id_allocation_chunk_size(64) {}
 
 LayerTreeSettings::~LayerTreeSettings() {}
 
 }  // namespace cc