[Android] Expose WebContents IsLoading methods to java.

content/browser/web_contents/web_contents_android.h

Index: content/browser/web_contents/web_contents_android.h
diff --git a/content/browser/web_contents/web_contents_android.h b/content/browser/web_contents/web_contents_android.h
index 6da02bb128b43bc22916bedd5363d01db260d144..4b79231c005745b4e24190cf2ae6720c04698512 100644
--- a/content/browser/web_contents/web_contents_android.h
+++ b/content/browser/web_contents/web_contents_android.h
@@ -41,6 +41,10 @@ class CONTENT_EXPORT WebContentsAndroid
                                                       jobject obj) const;
   base::android::ScopedJavaLocalRef<jstring> GetVisibleURL(JNIEnv* env,
                                                            jobject obj) const;
+
+  bool IsLoading(JNIEnv* env, jobject obj) const;
+  bool IsLoadingToDifferentDocument(JNIEnv* env, jobject obj) const;
+
   void Stop(JNIEnv* env, jobject obj);
   jint GetBackgroundColor(JNIEnv* env, jobject obj);
   base::android::ScopedJavaLocalRef<jstring> GetURL(JNIEnv* env, jobject) const;