Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

gpu/command_buffer/tests/gl_gpu_memory_buffer_unittests.cc

 // Copyright (c) 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 <GLES2/gl2.h>
 #include <GLES2/gl2chromium.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 
 #include "base/bind.h"
@@ skipping 24 matching lines @@
 static const int kImageWidth = 256;
 static const int kImageHeight = 256;
 static const int kImageBytesPerPixel = 4;
 
 class MockGpuMemoryBufferTest : public testing::Test {
  protected:
   virtual void SetUp() {
     GLManager::Options options;
     image_manager_ = new ImageManager;
     image_factory_.reset(
-        new StrictMock<ImageFactoryMock>(image_manager_));
+        new StrictMock<ImageFactoryMock>(image_manager_.get()));
     options.image_manager = image_manager_.get();
     options.image_factory = image_factory_.get();
 
     gl_.Initialize(options);
     gl_.MakeCurrent();
   }
 
   virtual void TearDown() {
     gl_.Destroy();
   }
@@ skipping 76 matching lines @@
       .RetiresOnSaturation();
 
   glDestroyImageCHROMIUM(image_id);
 
   // Delete the texture.
   glDeleteTextures(1, &texture_id);
 }
 
 }  // namespace gles2
 }  // namespace gpu