content: Partial copy workaround for devices with known upload performance problems.

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 2120 matching lines @@
     // draw when raster is complete.  Therefore, it must use one of zero
     // copy, software raster, or GPU raster.
     DCHECK(!IsSynchronousSingleThreaded());
 
     // We need to create a staging resource pool when using copy rasterizer.
     *staging_resource_pool =
         ResourcePool::Create(resource_provider_.get(), image_target);
     *resource_pool =
         ResourcePool::Create(resource_provider_.get(), GL_TEXTURE_2D);
 
+    int max_copy_texture_chromium_size =
+        context_provider->ContextCapabilities()
+            .gpu.max_copy_texture_chromium_size;
+
     *tile_task_worker_pool = OneCopyTileTaskWorkerPool::Create(
         task_runner, task_graph_runner, context_provider,
         resource_provider_.get(), staging_resource_pool_.get(),
-        settings_.max_bytes_per_copy_operation,
+        max_copy_texture_chromium_size,
         settings_.use_persistent_map_for_gpu_memory_buffers);
     return;
   }
 
   // Synchronous single-threaded mode depends on tiles being ready to
   // draw when raster is complete.  Therefore, it must use one of zero
   // copy, software raster, or GPU raster (in the branches above).
   DCHECK(!IsSynchronousSingleThreaded());
 
   *resource_pool = ResourcePool::Create(
@@ skipping 1303 matching lines @@
   new_target.SetToMin(layer_impl->MaxScrollOffset());
 
   curve->UpdateTarget(
       animation->TrimTimeToCurrentIteration(CurrentBeginFrameArgs().frame_time)
           .InSecondsF(),
       new_target);
 
   return true;
 }
 }  // namespace cc