Add VR Shell animation classes and unit test.

chrome/browser/android/vr_shell/vr_shell.cc

 // 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.
 
 #include "chrome/browser/android/vr_shell/vr_shell.h"
 
 #include <thread>
 
+#include "chrome/browser/android/vr_shell/vr_gl_util.h"
+#include "chrome/browser/android/vr_shell/vr_math.h"
 #include "chrome/browser/android/vr_shell/vr_shell_renderer.h"
-#include "chrome/browser/android/vr_shell/vr_util.h"
 #include "jni/VrShell_jni.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/init/gl_factory.h"
 
 using base::android::JavaParamRef;
 
 namespace {
 // Constant taken from treasure_hunt demo.
 static constexpr long kPredictionTimeWithoutVsyncNanos = 50000000;
 
@@ skipping 298 matching lines @@
 
 // ----------------------------------------------------------------------------
 // Native JNI methods
 // ----------------------------------------------------------------------------
 
 jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   return reinterpret_cast<intptr_t>(new VrShell(env, obj));
 }
 
 }  // namespace vr_shell