Attach ImeAdapter as soon as native side is ready

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index cf0a7a70cf14d255f475ecac5609378d1c870e6f..016caf2a5b36c77a85e55faf3fd142cb4b0a9a45 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -230,6 +230,9 @@ void ContentViewCoreImpl::InitWebContents() {
   notification_registrar_.Add(
       this, NOTIFICATION_RENDERER_PROCESS_CREATED,
       content::NotificationService::AllBrowserContextsAndSources());
+  notification_registrar_.Add(
+      this, NOTIFICATION_WEB_CONTENTS_CONNECTED,
+      Source<WebContents>(web_contents_));
 
   static_cast<WebContentsViewAndroid*>(web_contents_->GetView())->
       SetContentViewCore(this);
@@ -281,6 +284,14 @@ void ContentViewCoreImpl::Observe(int type,
       }
       break;
     }
+    case NOTIFICATION_WEB_CONTENTS_CONNECTED: {
+      JNIEnv* env = AttachCurrentThread();
+      ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+      if (!obj.is_null()) {
+        Java_ContentViewCore_onWebContentsConnected(env, obj.obj());
+      }
+      break;
+    }
   }
 }