Add a flag to disable partial raster in renderer

cc/trees/layer_tree_host_impl.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_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <set>
@@ skipping 168 matching lines @@
       visible_(false),
       cached_managed_memory_policy_(settings.memory_policy_),
       is_synchronous_single_threaded_(!proxy->HasImplThread() &&
                                       !settings.single_thread_proxy_scheduler),
       // Must be initialized after is_synchronous_single_threaded_ and proxy_.
       tile_manager_(
           TileManager::Create(this,
                               GetTaskRunner(),
                               is_synchronous_single_threaded_
                                   ? std::numeric_limits<size_t>::max()
-                                  : settings.scheduled_raster_task_limit)),
+                                  : settings.scheduled_raster_task_limit,
+                              settings.use_partial_raster)),
       pinch_gesture_active_(false),
       pinch_gesture_end_should_clear_scrolling_layer_(false),
       fps_counter_(FrameRateCounter::Create(proxy_->HasImplThread())),
       memory_history_(MemoryHistory::Create()),
       debug_rect_history_(DebugRectHistory::Create()),
       texture_mailbox_deleter_(new TextureMailboxDeleter(GetTaskRunner())),
       max_memory_needed_bytes_(0),
       resourceless_software_draw_(false),
       animation_registrar_(),
       rendering_stats_instrumentation_(rendering_stats_instrumentation),
@@ skipping 1932 matching lines @@
 
   *resource_pool = ResourcePool::Create(resource_provider_.get(),
                                         GetTaskRunner(), GL_TEXTURE_2D);
 
   int max_copy_texture_chromium_size = context_provider->ContextCapabilities()
                                            .gpu.max_copy_texture_chromium_size;
 
   *tile_task_worker_pool = OneCopyTileTaskWorkerPool::Create(
       GetTaskRunner(), task_graph_runner, context_provider,
       resource_provider_.get(), max_copy_texture_chromium_size,
-      settings_.use_persistent_map_for_gpu_memory_buffers,
-      settings_.max_staging_buffer_usage_in_bytes,
+      settings_.use_partial_raster, settings_.max_staging_buffer_usage_in_bytes,
       settings_.renderer_settings.use_rgba_4444_textures);
 }
 
 void LayerTreeHostImpl::RecordMainFrameTiming(
     const BeginFrameArgs& start_of_main_frame_args,
     const BeginFrameArgs& expected_next_main_frame_args) {
   std::vector<int64_t> request_ids;
   active_tree_->GatherFrameTimingRequestIds(&request_ids);
   if (request_ids.empty())
     return;
@@ skipping 1442 matching lines @@
   if (active_tree()) {
     LayerAnimationValueProvider* layer = active_tree()->LayerById(layer_id);
     if (layer)
       return layer->ScrollOffsetForAnimation();
   }
 
   return gfx::ScrollOffset();
 }
 
 }  // namespace cc