Update from chromium 62675d9fb31fb8cedc40f68e78e8445a74f362e7

cc/resources/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/resources/tile_manager.h"
 
 #include <algorithm>
 #include <limits>
 #include <string>
 
 #include "base/bind.h"
 #include "base/debug/trace_event_argument.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "cc/debug/devtools_instrumentation.h"
 #include "cc/debug/frame_viewer_instrumentation.h"
 #include "cc/debug/traced_value.h"
 #include "cc/layers/picture_layer_impl.h"
 #include "cc/resources/raster_buffer.h"
 #include "cc/resources/rasterizer.h"
 #include "cc/resources/tile.h"
-#include "ui/gfx/rect_conversions.h"
+#include "ui/gfx/geometry/rect_conversions.h"
 
 namespace cc {
 namespace {
 
 // Flag to indicate whether we should try and detect that
 // a tile is of solid color.
 const bool kUseColorEstimator = true;
 
 class RasterTaskImpl : public RasterTask {
  public:
@@ skipping 152 matching lines @@
 
  private:
   skia::RefPtr<SkPixelRef> pixel_ref_;
   int layer_id_;
   RenderingStatsInstrumentation* rendering_stats_;
   const base::Callback<void(bool was_canceled)> reply_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageDecodeTaskImpl);
 };
 
-const size_t kScheduledRasterTasksLimit = 32u;
-
 }  // namespace
 
 RasterTaskCompletionStats::RasterTaskCompletionStats()
     : completed_count(0u), canceled_count(0u) {}
 
 scoped_refptr<base::debug::ConvertableToTraceFormat>
 RasterTaskCompletionStatsAsValue(const RasterTaskCompletionStats& stats) {
   scoped_refptr<base::debug::TracedValue> state =
       new base::debug::TracedValue();
   state->SetInteger("completed_count", stats.completed_count);
   state->SetInteger("canceled_count", stats.canceled_count);
   return state;
 }
 
 // static
 scoped_ptr<TileManager> TileManager::Create(
     TileManagerClient* client,
     base::SequencedTaskRunner* task_runner,
     ResourcePool* resource_pool,
     Rasterizer* rasterizer,
-    RenderingStatsInstrumentation* rendering_stats_instrumentation) {
+    RenderingStatsInstrumentation* rendering_stats_instrumentation,
+    size_t scheduled_raster_task_limit) {
   return make_scoped_ptr(new TileManager(client,
                                          task_runner,
                                          resource_pool,
                                          rasterizer,
-                                         rendering_stats_instrumentation));
+                                         rendering_stats_instrumentation,
+                                         scheduled_raster_task_limit));
 }
 
 TileManager::TileManager(
     TileManagerClient* client,
     const scoped_refptr<base::SequencedTaskRunner>& task_runner,
     ResourcePool* resource_pool,
     Rasterizer* rasterizer,
-    RenderingStatsInstrumentation* rendering_stats_instrumentation)
+    RenderingStatsInstrumentation* rendering_stats_instrumentation,
+    size_t scheduled_raster_task_limit)
     : client_(client),
       task_runner_(task_runner),
       resource_pool_(resource_pool),
       rasterizer_(rasterizer),
+      scheduled_raster_task_limit_(scheduled_raster_task_limit),
       all_tiles_that_need_to_be_rasterized_are_scheduled_(true),
       rendering_stats_instrumentation_(rendering_stats_instrumentation),
       did_initialize_visible_tile_(false),
       did_check_for_completed_tasks_since_last_schedule_tasks_(true),
       did_oom_on_last_assign_(false),
       ready_to_activate_check_notifier_(
           task_runner_.get(),
           base::Bind(&TileManager::CheckIfReadyToActivate,
                      base::Unretained(this))) {
   rasterizer_->SetClient(this);
@@ skipping 317 matching lines @@
     if (TilePriorityViolatesMemoryPolicy(priority)) {
       TRACE_EVENT_INSTANT0(
           "cc",
           "TileManager::AssignGpuMemory tile violates memory policy",
           TRACE_EVENT_SCOPE_THREAD);
       break;
     }
 
     // We won't be able to schedule this tile, so break out early.
     if (tiles_that_need_to_be_rasterized->size() >=
-        kScheduledRasterTasksLimit) {
+        scheduled_raster_task_limit_) {
       all_tiles_that_need_to_be_rasterized_are_scheduled_ = false;
       break;
     }
 
     ManagedTileState& mts = tile->managed_state();
     mts.scheduled_priority = schedule_priority++;
 
     DCHECK(mts.draw_info.mode() ==
                ManagedTileState::DrawInfo::PICTURE_PILE_MODE ||
            !mts.draw_info.IsReadyToDraw());
@@ skipping 335 matching lines @@
   result -= other;
   return result;
 }
 
 bool TileManager::MemoryUsage::Exceeds(const MemoryUsage& limit) const {
   return memory_bytes_ > limit.memory_bytes_ ||
          resource_count_ > limit.resource_count_;
 }
 
 }  // namespace cc