[PresentationAPI, Android] Add ChromeMediaRouterDialogController.java and bind it with the native M…

chrome/browser/media/android/router/media_router_dialog_controller_android.h

Index: chrome/browser/media/android/router/media_router_dialog_controller_android.h
diff --git a/chrome/browser/media/android/router/media_router_dialog_controller_android.h b/chrome/browser/media/android/router/media_router_dialog_controller_android.h
index 41c106cf7e0ec08fcb47762ec470f538a1bfcba6..c5419269826abca679f6a6430a402091697066ba 100644
--- a/chrome/browser/media/android/router/media_router_dialog_controller_android.h
+++ b/chrome/browser/media/android/router/media_router_dialog_controller_android.h
@@ -5,6 +5,9 @@
 #ifndef CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_DIALOG_CONTROLLER_ANDROID_H_
 #define CHROME_BROWSER_MEDIA_ANDROID_ROUTER_MEDIA_ROUTER_DIALOG_CONTROLLER_ANDROID_H_
 
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "chrome/browser/media/router/media_router_dialog_controller.h"
 #include "content/public/browser/web_contents_user_data.h"
@@ -18,6 +21,8 @@ class MediaRouterDialogControllerAndroid
  public:
   ~MediaRouterDialogControllerAndroid() override;
 
+  static bool Register(JNIEnv* env);
+
   static MediaRouterDialogControllerAndroid* GetOrCreateForWebContents(
       content::WebContents* web_contents);
 
@@ -34,6 +39,8 @@ class MediaRouterDialogControllerAndroid
   void CloseMediaRouterDialog() override;
   bool IsShowingMediaRouterDialog() const override;
 
+  base::android::ScopedJavaGlobalRef<jobject> java_dialog_controller_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaRouterDialogControllerAndroid);
 };