Update from https://crrev.com/311076

cc/output/delegating_renderer.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/output/delegating_renderer.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 23 matching lines @@
                                        OutputSurface* output_surface,
                                        ResourceProvider* resource_provider)
     : Renderer(client, settings),
       output_surface_(output_surface),
       resource_provider_(resource_provider) {
   DCHECK(resource_provider_);
 
   capabilities_.using_partial_swap = false;
   capabilities_.max_texture_size = resource_provider_->max_texture_size();
   capabilities_.best_texture_format = resource_provider_->best_texture_format();
-  capabilities_.allow_partial_texture_updates = false;
+  capabilities_.allow_partial_texture_updates =
+      output_surface->capabilities().can_force_reclaim_resources;
 
   if (!output_surface_->context_provider()) {
     capabilities_.using_shared_memory_resources = true;
   } else {
     const ContextProvider::Capabilities& caps =
         output_surface_->context_provider()->ContextCapabilities();
 
     DCHECK(!caps.gpu.iosurface || caps.gpu.texture_rectangle);
 
     capabilities_.using_egl_image = caps.gpu.egl_image_external;
@@ skipping 66 matching lines @@
     }
   }
   // We loop visibility to the GPU process, since that's what manages memory.
   // That will allow it to feed us with memory allocations that we can act
   // upon.
   if (context_provider)
     context_provider->ContextSupport()->SetSurfaceVisible(visible());
 }
 
 }  // namespace cc