Switch cc to std::unordered_*.

cc/test/test_texture.h

 // 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.
 
 #ifndef CC_TEST_TEST_TEXTURE_H_
 #define CC_TEST_TEST_TEXTURE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
-#include "base/containers/hash_tables.h"
+#include <unordered_map>
+
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/resources/resource_format.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace cc {
 
 size_t TextureSizeBytes(const gfx::Size& size, ResourceFormat format);
 
 struct TestTexture : public base::RefCounted<TestTexture> {
   TestTexture();
 
   void Reallocate(const gfx::Size& size, ResourceFormat format);
   bool IsValidParameter(GLenum pname);
 
   gfx::Size size;
   ResourceFormat format;
   scoped_ptr<uint8_t[]> data;
 
-  typedef base::hash_map<GLenum, GLint>
-      TextureParametersMap;
+  using TextureParametersMap = std::unordered_map<GLenum, GLint>;
   TextureParametersMap params;
 
  private:
   friend class base::RefCounted<TestTexture>;
   ~TestTexture();
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_TEST_TEXTURE_H_