Fix the incorrect native ImeAdapter attach and detach.

content/browser/android/content_view_core_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 201 matching lines @@
   DCHECK(web_contents_);
   notification_registrar_.Add(
       this, NOTIFICATION_RENDER_VIEW_HOST_CHANGED,
       Source<NavigationController>(&web_contents_->GetController()));
   notification_registrar_.Add(
       this, NOTIFICATION_RENDERER_PROCESS_CREATED,
       content::NotificationService::AllBrowserContextsAndSources());
   notification_registrar_.Add(
       this, NOTIFICATION_WEB_CONTENTS_CONNECTED,
       Source<WebContents>(web_contents_));
+  notification_registrar_.Add(
+      this, NOTIFICATION_WEB_CONTENTS_SWAPPED,
+      Source<WebContents>(web_contents_));
 
   static_cast<WebContentsViewAndroid*>(web_contents_->GetView())->
       SetContentViewCore(this);
   DCHECK(!web_contents_->GetUserData(kContentViewUserDataKey));
   web_contents_->SetUserData(kContentViewUserDataKey,
                              new ContentViewUserData(this));
 }
 
 void ContentViewCoreImpl::Observe(int type,
                                   const NotificationSource& source,
@@ skipping 39 matching lines @@
       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;
     }
+    case NOTIFICATION_WEB_CONTENTS_SWAPPED: {
+      JNIEnv* env = AttachCurrentThread();
+      ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+      if (!obj.is_null()) {
+        Java_ContentViewCore_onWebContentsSwapped(env, obj.obj());
+      }
+    }
   }
 }
 
 RenderWidgetHostViewAndroid*
     ContentViewCoreImpl::GetRenderWidgetHostViewAndroid() {
   RenderWidgetHostView* rwhv = NULL;
   if (web_contents_) {
     rwhv = web_contents_->GetRenderWidgetHostView();
     if (web_contents_->ShowingInterstitialPage()) {
       rwhv = static_cast<InterstitialPageImpl*>(
@@ skipping 1188 matching lines @@
       reinterpret_cast<WebContents*>(native_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(native_window));
   return reinterpret_cast<jint>(view);
 }
 
 bool RegisterContentViewCore(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content