Add ContentViewDelegate

base/android/jni_helper.h

Index: base/android/jni_helper.h
diff --git a/base/android/jni_helper.h b/base/android/jni_helper.h
index bd3579fc89929ef1333b43b2a0b41cfff5be4810..22883cbbcfcab5d4d1f6a559a6e38968cbd43d21 100644
--- a/base/android/jni_helper.h
+++ b/base/android/jni_helper.h
@@ -15,17 +15,21 @@
 // calls the destructor) they'll need to provide their own synchronization.
 class JavaObjectWeakGlobalRef {
  public:
+  JavaObjectWeakGlobalRef();
+  JavaObjectWeakGlobalRef(const JavaObjectWeakGlobalRef& orig);
   JavaObjectWeakGlobalRef(JNIEnv* env, jobject obj);
   virtual ~JavaObjectWeakGlobalRef();
 
+  void operator=(const JavaObjectWeakGlobalRef& rhs);
+
   base::android::ScopedJavaLocalRef<jobject> get(JNIEnv* env) const;
 
   void reset();
 
  private:
-  jweak obj_;
+  void Assign(const JavaObjectWeakGlobalRef& rhs);
 
-  DISALLOW_COPY_AND_ASSIGN(JavaObjectWeakGlobalRef);
+  jweak obj_;
 };
 
 // Get the real object stored in the weak reference returned as a