Android Webview: Skip managed resources in mailbox sync

gpu/command_buffer/service/mailbox_synchronizer.cc

 // Copyright 2014 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 "gpu/command_buffer/service/mailbox_synchronizer.h"
 
 #include "base/bind.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "ui/gl/gl_implementation.h"
@@ skipping 148 matching lines @@
       std::set<TargetName>::const_iterator mb_it =
           group->mailboxes.find(target_name);
       if (mb_it == group->mailboxes.end()) {
         // We previously did not associate this texture with the given mailbox.
         // Unlink other texture groups from the mailbox.
         ReassociateMailboxLocked(target_name, group);
       }
       UpdateTextureLocked(texture, texture_version);
 
     } else {
+      // Skip compositor resources/tile textures.
+      // TODO: Remove this, see crbug.com/399226.
+      if (texture->pool() == GL_TEXTURE_POOL_MANAGED_CHROMIUM)
+        continue;
+
       linked_ptr<TextureGroup> group = make_linked_ptr(new TextureGroup(
           TextureDefinition(target_name.target, texture, 1, NULL)));
 
       // Unlink other textures from this mailbox in case the name is not new.
       ReassociateMailboxLocked(target_name, group.get());
       textures_.insert(std::make_pair(texture, TextureVersion(group)));
     }
   }
 }
 
@@ skipping 38 matching lines @@
           definition.IsOlderThan(it->second.version))
         continue;
       it->second.version = definition.version();
       definition.UpdateTexture(texture);
     }
   }
 }
 
 }  // namespace gles2
 }  // namespace gpu