Remove Sync GetPose VRService call, implement VRVSyncProvider

chrome/browser/android/vr_shell/vr_shell_delegate.h

Index: chrome/browser/android/vr_shell/vr_shell_delegate.h
diff --git a/chrome/browser/android/vr_shell/vr_shell_delegate.h b/chrome/browser/android/vr_shell/vr_shell_delegate.h
index 3731bb2f7972489e448db590fe0c1d245c7dc6e3..82a7208b44115a76bcaf19c9af78e1733ea0ed1c 100644
--- a/chrome/browser/android/vr_shell/vr_shell_delegate.h
+++ b/chrome/browser/android/vr_shell/vr_shell_delegate.h
@@ -8,6 +8,7 @@
 #include <jni.h>
 
 #include "base/android/jni_weak_ref.h"
+#include "base/callback.h"
 #include "base/macros.h"
 #include "device/vr/android/gvr/gvr_delegate.h"
 
@@ -17,6 +18,8 @@ class GvrDeviceProvider;
 
 namespace vr_shell {
 
+class NonPresentingGvrDelegate;
+
 class VrShellDelegate : public device::GvrDelegateProvider {
  public:
   VrShellDelegate(JNIEnv* env, jobject obj);
@@ -27,8 +30,16 @@ class VrShellDelegate : public device::GvrDelegateProvider {
   void SetDelegate(device::GvrDelegate* delegate);
   void RemoveDelegate();
 
-  void SetPresentResult(JNIEnv* env, jobject obj, jboolean result);
-  void DisplayActivate(JNIEnv* env, jobject obj);
+  void SetPresentResult(JNIEnv* env,
+                        const base::android::JavaParamRef<jobject>& obj,
+                        jboolean result);
+  void DisplayActivate(JNIEnv* env,
+                       const base::android::JavaParamRef<jobject>& obj);
+  void UpdateVSyncInterval(JNIEnv* env,
+                           const base::android::JavaParamRef<jobject>& obj,
+                           jlong timebase_nanos, jdouble interval_seconds);
+  void OnPause(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
+  void OnResume(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   void ForceExitVr();
   device::GvrDeviceProvider* device_provider() { return device_provider_; }
@@ -42,11 +53,13 @@ class VrShellDelegate : public device::GvrDelegateProvider {
   void SetListeningForActivate(bool listening) override;
 
  private:
-  std::unique_ptr<device::GvrDelegate> non_presenting_delegate_;
+  std::unique_ptr<NonPresentingGvrDelegate> non_presenting_delegate_;
   base::android::ScopedJavaGlobalRef<jobject> j_vr_shell_delegate_;
   device::GvrDeviceProvider* device_provider_ = nullptr;
   device::GvrDelegate* delegate_ = nullptr;
   base::Callback<void(bool)> present_callback_;
+  long timebase_nanos_ = 0;
+  double interval_seconds_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(VrShellDelegate);
 };