Release partially constructed GLES2 implementation in Pepper Graphics3D resource.

ppapi/proxy/ppb_graphics_3d_proxy.cc

 // 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.
 
 #include "ppapi/proxy/ppb_graphics_3d_proxy.h"
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/proxy/enter_proxy.h"
@@ skipping 39 matching lines @@
   return error_state;
 }
 
 }  // namespace
 
 Graphics3D::Graphics3D(const HostResource& resource)
     : PPB_Graphics3D_Shared(resource) {
 }
 
 Graphics3D::~Graphics3D() {
-  if (gles2_impl())
-    DestroyGLES2Impl();
+  DestroyGLES2Impl();
 }
 
 bool Graphics3D::Init(gpu::gles2::GLES2Implementation* share_gles2) {
   PluginDispatcher* dispatcher = PluginDispatcher::GetForResource(this);
   if (!dispatcher)
     return false;
 
   command_buffer_.reset(
       new PpapiCommandBufferProxy(host_resource(), dispatcher));
 
@@ skipping 274 matching lines @@
     int32_t result,
     const HostResource& context) {
   dispatcher()->Send(new PpapiMsg_PPBGraphics3D_SwapBuffersACK(
       API_ID_PPB_GRAPHICS_3D, context, result));
 }
 #endif  // !defined(OS_NACL)
 
 }  // namespace proxy
 }  // namespace ppapi