[Chromecast] Turn CastContentWindow into an abstract interface.

chromecast/browser/android/cast_metrics_helper_android.h

Index: chromecast/browser/android/cast_metrics_helper_android.h
diff --git a/chromecast/android/cast_metrics_helper_android.h b/chromecast/browser/android/cast_metrics_helper_android.h
similarity index 67%
rename from chromecast/android/cast_metrics_helper_android.h
rename to chromecast/browser/android/cast_metrics_helper_android.h
index 23e0f470d70a3900084dceaa71215eee82018238..6665436561dd123581a4cdc1568039dc7fdf286c 100644
--- a/chromecast/android/cast_metrics_helper_android.h
+++ b/chromecast/browser/android/cast_metrics_helper_android.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROMECAST_ANDROID_CAST_METRICS_HELPER_ANDROID_H_
-#define CHROMECAST_ANDROID_CAST_METRICS_HELPER_ANDROID_H_
+#ifndef CHROMECAST_BROWSER_ANDROID_CAST_METRICS_HELPER_ANDROID_H_
+#define CHROMECAST_BROWSER_ANDROID_CAST_METRICS_HELPER_ANDROID_H_
 
 #include <jni.h>
 #include <vector>
@@ -11,7 +11,7 @@
 #include "base/macros.h"
 
 namespace chromecast {
-
+namespace shell {
 class CastMetricsHelperAndroid {
  public:
   // Registers the JNI methods for CastMetricsHelperAndroid.
@@ -21,6 +21,7 @@ class CastMetricsHelperAndroid {
   DISALLOW_IMPLICIT_CONSTRUCTORS(CastMetricsHelperAndroid);
 };
 
+}  // namespace shell
 }  // namespace chromecast
 
-#endif  // CHROMECAST_ANDROID_CAST_METRICS_HELPER_ANDROID_H_
+#endif  // CHROMECAST_BROWSER_ANDROID_CAST_METRICS_HELPER_ANDROID_H_