Add GenericSharedMemoryId and use w/ GpuMemoryBuffer

content/common/gpu/gpu_memory_buffer_factory_unittest.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 "content/common/gpu/gpu_memory_buffer_factory.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 namespace {
@@ skipping 10 matching lines @@
         &supported_configurations_);
   }
   void TearDown() override { factory_.reset(); }
 
  protected:
   scoped_ptr<GpuMemoryBufferFactory> factory_;
   std::vector<GpuMemoryBufferFactory::Configuration> supported_configurations_;
 };
 
 TEST_P(GpuMemoryBufferFactoryTest, CreateAndDestroy) {
-  const int kBufferId = 1;
+  const gfx::GpuMemoryBufferId kBufferId(1);
   const int kClientId = 1;
 
   gfx::Size buffer_size(2, 2);
 
   for (auto configuration : supported_configurations_) {
     gfx::GpuMemoryBufferHandle handle = factory_->CreateGpuMemoryBuffer(
         kBufferId, buffer_size, configuration.format, configuration.usage,
         kClientId, gfx::kNullPluginWindow);
     EXPECT_EQ(handle.type, GetParam());
     factory_->DestroyGpuMemoryBuffer(kBufferId, kClientId);
   }
 }
 
 std::vector<gfx::GpuMemoryBufferType>
 GetSupportedGpuMemoryBufferFactoryTypes() {
   std::vector<gfx::GpuMemoryBufferType> supported_types;
   GpuMemoryBufferFactory::GetSupportedTypes(&supported_types);
   return supported_types;
 }
 
 INSTANTIATE_TEST_CASE_P(
     GpuMemoryBufferFactoryTests,
     GpuMemoryBufferFactoryTest,
     ::testing::ValuesIn(GetSupportedGpuMemoryBufferFactoryTypes()));
 
 }  // namespace
 }  // namespace content