Add a workaround for copyTexImage2D as it is sometimes broken on OSX.

gpu/command_buffer/tests/gl_manager.h

 // Copyright (c) 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.
 
 #ifndef GPU_COMMAND_BUFFER_TESTS_GL_MANAGER_H_
 #define GPU_COMMAND_BUFFER_TESTS_GL_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 60 matching lines @@
     bool lose_context_when_out_of_memory;
     // Whether or not it's ok to lose the context.
     bool context_lost_allowed;
     gles2::ContextType context_type;
     // Force shader name hashing for all context types.
     bool force_shader_name_hashing;
   };
   GLManager();
   ~GLManager() override;
 
-  static scoped_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBuffer(
+  scoped_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBuffer(
       const gfx::Size& size,
       gfx::BufferFormat format);
 
   void Initialize(const Options& options);
   void InitializeWithCommandLine(const Options& options,
                                  base::CommandLine* command_line);
   void Destroy();
 
   bool IsInitialized() const { return gles2_implementation() != nullptr; }
 
   void MakeCurrent();
 
   void SetSurface(gfx::GLSurface* surface);
 
+  void set_use_iosurface_memory_buffers(bool use_iosurface_memory_buffers) {
+    use_iosurface_memory_buffers_ = use_iosurface_memory_buffers;
+  }
+
   void SetCommandsPaused(bool paused) { pause_commands_ = paused; }
 
   gles2::GLES2Decoder* decoder() const {
     return decoder_.get();
   }
 
   gles2::MailboxManager* mailbox_manager() const {
     return mailbox_manager_.get();
   }
 
@@ skipping 62 matching lines @@
   scoped_ptr<gles2::GLES2CmdHelper> gles2_helper_;
   scoped_ptr<TransferBuffer> transfer_buffer_;
   scoped_ptr<gles2::GLES2Implementation> gles2_implementation_;
   bool context_lost_allowed_;
   bool pause_commands_;
   uint32_t paused_order_num_;
 
   const CommandBufferId command_buffer_id_;
   uint64_t next_fence_sync_release_;
 
+  bool use_iosurface_memory_buffers_ = false;
+
   // Used on Android to virtualize GL for all contexts.
   static int use_count_;
   static scoped_refptr<gfx::GLShareGroup>* base_share_group_;
   static scoped_refptr<gfx::GLSurface>* base_surface_;
   static scoped_refptr<gfx::GLContext>* base_context_;
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_TESTS_GL_MANAGER_H_