[Android] Fix GinJavaBridgeMessageFilter registration issue in Java Bridge.

content/browser/android/java/gin_java_bridge_message_filter.h

Index: content/browser/android/java/gin_java_bridge_message_filter.h
diff --git a/content/browser/android/java/gin_java_bridge_message_filter.h b/content/browser/android/java/gin_java_bridge_message_filter.h
index 630963207b6c3ac1b297e6d1f0ed3babe4f47891..f7499e17fafefe825c4c05d7d82d9c48bc21a5c7 100644
--- a/content/browser/android/java/gin_java_bridge_message_filter.h
+++ b/content/browser/android/java/gin_java_bridge_message_filter.h
@@ -43,6 +43,14 @@ class GinJavaBridgeMessageFilter : public BrowserMessageFilter {
   static scoped_refptr<GinJavaBridgeMessageFilter> FromHost(
       GinJavaBridgeDispatcherHost* host, bool create_if_not_exists);
 
+  void SetNeedsToAddFilterForNewIpcChannel(bool add_filter) {
+    needs_to_add_filter_for_new_ipc_channel_ = add_filter;
+  }
+
+  bool NeedsToAddFilterForNewIpcChannel() {
+    return needs_to_add_filter_for_new_ipc_channel_;
+  }
+
  private:
   friend class BrowserThread;
   friend class base::DeleteHelper<GinJavaBridgeMessageFilter>;
@@ -85,6 +93,11 @@ class GinJavaBridgeMessageFilter : public BrowserMessageFilter {
   // The routing id of the RenderFrameHost whose request we are processing.
   // Used on the background thread.
   int32 current_routing_id_;
+
+  // Communication channel between RPH and sandbox render process has exited. It
+  // needs to re-register the message filter with the newly created channel to
+  // receive Java bridge messages from renderer.
+  bool needs_to_add_filter_for_new_ipc_channel_;
 };
 
 }  // namespace content