[Chromecast] Turn CastContentWindow into an abstract interface.

chromecast/android/cast_jni_registrar.cc

 // Copyright 2014 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 "chromecast/android/cast_jni_registrar.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
 #include "base/macros.h"
-#include "chromecast/android/cast_metrics_helper_android.h"
 #include "chromecast/base/android/system_time_change_notifier_android.h"
 #include "chromecast/base/chromecast_config_android.h"
-#include "chromecast/browser/android/cast_window_manager.h"
 
 namespace chromecast {
 namespace android {
 
 namespace {
 
 static base::android::RegistrationMethod kMethods[] = {
-  { "CastMetricsHelperAndroid", CastMetricsHelperAndroid::RegisterJni },
-  { "CastWindowManager", shell::RegisterCastWindowManager },
-  { "ChromecastConfigAndroid", ChromecastConfigAndroid::RegisterJni },
-  { "SystemTimeChangeNotifierAndroid",
-      SystemTimeChangeNotifierAndroid::RegisterJni },
+    {"ChromecastConfigAndroid", ChromecastConfigAndroid::RegisterJni},
+    {"SystemTimeChangeNotifierAndroid",
+     SystemTimeChangeNotifierAndroid::RegisterJni},
 };
 
 }  // namespace
 
 bool RegisterJni(JNIEnv* env) {
   return RegisterNativeMethods(env, kMethods, arraysize(kMethods));
 }
 
 }  // namespace android
 }  // namespace chromecast