Add GenericSharedMemoryId and use w/ GpuMemoryBuffer

components/view_manager/gles2/command_buffer_driver.cc

 // Copyright 2013 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 "components/view_manager/gles2/command_buffer_driver.h"
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/shared_memory.h"
 #include "components/view_manager/gles2/command_buffer_type_conversions.h"
@@ skipping 238 matching lines @@
   }
 
   if (type != gfx::SHARED_MEMORY_BUFFER) {
     NOTIMPLEMENTED();
     return;
   }
 
   gfx::GpuMemoryBufferHandle gfx_handle;
   // TODO(jam): create mojo enum for this and converter
   gfx_handle.type = static_cast<gfx::GpuMemoryBufferType>(type);
-  gfx_handle.id = id;
+  gfx_handle.id = gfx::GpuMemoryBufferId(id);
 
   MojoPlatformHandle platform_handle;
   MojoResult extract_result = MojoExtractPlatformHandle(
       memory_handle.release().value(),
       &platform_handle);
   if (extract_result != MOJO_RESULT_OK) {
     NOTREACHED();
     return;
   }
 
@@ skipping 63 matching lines @@
 
 void CommandBufferDriver::DestroyDecoder() {
   if (decoder_) {
     bool have_context = decoder_->MakeCurrent();
     decoder_->Destroy(have_context);
     decoder_.reset();
   }
 }
 
 }  // namespace gles2