Implements core logic for Pixel Canvas

cc/tiles/tile_manager.cc

 // Copyright 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.
 
 #include "cc/tiles/tile_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 657 matching lines @@
 
     bool tile_is_needed_now = priority.priority_bin == TilePriority::NOW;
     if (!tile->is_solid_color_analysis_performed() &&
         tile->use_picture_analysis() && kUseColorEstimator) {
       // We analyze for solid color here, to decide to continue
       // or drop the tile for scheduling and raster.
       // TODO(sohanjg): Check if we could use a shared analysis
       // canvas which is reset between tiles.
       tile->set_solid_color_analysis_performed(true);
       SkColor color = SK_ColorTRANSPARENT;
-      gfx::RectF layer_rect = tile->raster_transform().InverseMapRect(
-          gfx::RectF(tile->content_rect()));
+
       bool is_solid_color =
           prioritized_tile.raster_source()->PerformSolidColorAnalysis(
-              gfx::ToEnclosingRect(layer_rect), 1.f, &color);
+              tile->content_rect(), tile->raster_transform(), &color);
       if (is_solid_color) {
         tile->draw_info().set_solid_color(color);
         client_->NotifyTileStateChanged(tile);
         continue;
       }
     }
 
     // Prepaint tiles that are far away are only processed for images.
     if (!tile->required_for_activation() && !tile->required_for_draw() &&
         prioritized_tile.is_process_for_images_only()) {
@@ skipping 963 matching lines @@
   all_tile_tasks_completed = false;
   did_notify_all_tile_tasks_completed = false;
 }
 
 TileManager::PrioritizedWorkToSchedule::PrioritizedWorkToSchedule() = default;
 TileManager::PrioritizedWorkToSchedule::PrioritizedWorkToSchedule(
     PrioritizedWorkToSchedule&& other) = default;
 TileManager::PrioritizedWorkToSchedule::~PrioritizedWorkToSchedule() = default;
 
 }  // namespace cc