[Chromecast] Turn CastContentWindow into an abstract interface.

chromecast/app/android/cast_jni_loader.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 "base/android/jni_android.h"
 #include "base/bind.h"
 #include "chromecast/android/cast_jni_registrar.h"
 #include "chromecast/android/platform_jni_loader.h"
 #include "chromecast/app/cast_main_delegate.h"
+#include "chromecast/browser/android/jni_registrar.h"
 #include "content/public/app/content_jni_onload.h"
 #include "content/public/app/content_main.h"
 #include "content/public/browser/android/compositor.h"
 
 namespace {
 
 bool RegisterJNI(JNIEnv* env) {
   // To be called only from the UI thread.  If loading the library is done on
   // a separate thread, this should be moved elsewhere.
   if (!chromecast::android::RegisterJni(env))
     return false;
+  if (!chromecast::shell::RegisterJni(env))
+    return false;
   // Allow platform-specific implementations to perform more JNI registration.
   if (!chromecast::android::PlatformRegisterJni(env))
     return false;
   return true;
 }
 
 bool Init() {
   content::Compositor::Initialize();
   content::SetContentMainDelegate(new chromecast::shell::CastMainDelegate);
   return true;
 }
 
 }  // namespace
 
 // This is called by the VM when the shared library is first loaded.
 JNI_EXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
   std::vector<base::android::RegisterCallback> register_callbacks;
   register_callbacks.push_back(base::Bind(&RegisterJNI));
   std::vector<base::android::InitCallback> init_callbacks;
   init_callbacks.push_back(base::Bind(&Init));
   if (!content::android::OnJNIOnLoadRegisterJNI(vm, register_callbacks) ||
       !content::android::OnJNIOnLoadInit(init_callbacks)) {
     return -1;
   }
   return JNI_VERSION_1_4;
 }