Add VR Shell animation classes and unit test.

chrome/browser/android/vr_shell/vr_shell_renderer.h

 // Copyright 2016 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 CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_RENDERER_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_RENDERER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
-#include "chrome/browser/android/vr_shell/vr_util.h"
+#include "chrome/browser/android/vr_shell/vr_math.h"
 #include "third_party/gvr-android-sdk/src/ndk-beta/include/vr/gvr/capi/include/gvr.h"
 #include "third_party/gvr-android-sdk/src/ndk-beta/include/vr/gvr/capi/include/gvr_types.h"
+#include "ui/gl/gl_bindings.h"
 
 namespace vr_shell {
 
 typedef unsigned int GLuint;
 
 enum ShaderID {
   SHADER_UNRECOGNIZED = 0,
   TEXTURE_QUAD_VERTEX_SHADER,
   TEXTURE_QUAD_FRAGMENT_SHADER,
   WEBVR_VERTEX_SHADER,
@@ skipping 69 matching lines @@
  private:
   std::unique_ptr<TexturedQuadRenderer> textured_quad_renderer_;
   std::unique_ptr<WebVrRenderer> webvr_renderer_;
 
   DISALLOW_COPY_AND_ASSIGN(VrShellRenderer);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_RENDERER_H_