Tracks GVR version crossed with headset type using UMA.

chrome/browser/android/vr_shell/vr_usage_monitor.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_USAGE_MONITOR_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_VR_USAGE_MONITOR_H_
 
 #include <memory>
 
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
+#ifdef ANDROID
+#include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr.h"

[ddorwin, 2017/05/16 00:15:51]

We should avoid adding GVR dependencies to more files. That makes more work in
order to make this cross-platform. Also, it require the ifdef.

[tiborg, 2017/05/23 15:47:25]

Ok, moved it to a separate file.

+#include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr_types.h"
+#endif  // ANDROID
 
 namespace vr_shell {
 
 enum class VRMode {
   NO_VR = 0,
   VR_BROWSER = 1,     // VR Shell.
   VR_FULLSCREEN = 2,  // Cinema mode.
   WEBVR = 3,
 };
 
@@ skipping 21 matching lines @@
   // config members:
   // time between stop and start to count as same session
   base::TimeDelta maximum_session_gap_time_;
 
   // minimum time between start and stop to add to duration
   base::TimeDelta minimum_duration_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionTimer);
 };
 
+enum class ViewerType {
+  UNKNOWN_TYPE = 0,
+  CARDBOARD = 1,
+  DAYDREAM = 2,
+  VIEWER_TYPE_MAX,
+};
+
+enum GvrVersionStatus { OLDER, UNKNOWN, PRECISE };
+
+class VrMetricsUtil {
+ public:
+#ifdef ANDROID
+  static void LogGvrVersionForVrViewerType(gvr_context* context,
+                                           GvrVersionStatus version_status,
+                                           gvr_version version);
+  static void LogVrViewerType(gvr_context* context);
+#endif  // ANDROID
+
+ private:
+#ifdef ANDROID
+  static ViewerType GetVrViewerType(gvr_context* context);
+
+  static bool logged_gvr_version_;

[ddorwin, 2017/05/16 00:15:51]

has_...

[tiborg, 2017/05/23 15:47:25]

Done.

+#endif  // ANDROID
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(VrMetricsUtil);
+};
+
 // This class is not threadsafe and must only be used from the main thread.
 class VrMetricsHelper : public content::WebContentsObserver {
  public:
   explicit VrMetricsHelper(content::WebContents*);
   ~VrMetricsHelper() override;
   void SetWebVREnabled(bool is_webvr_presenting);
   void SetVRActive(bool is_vr_enabled);
 
  private:
   // WebContentObserver
@@ skipping 23 matching lines @@
   int num_videos_playing_ = 0;
   int num_session_navigation_ = 0;
   int num_session_video_playback_ = 0;
 
   GURL origin_;
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_VR_USAGE_MONITOR_H_