Add missing using statements for JNI types.

content/browser/renderer_host/ime_adapter_android.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/renderer_host/ime_adapter_android.h"
 
 #include <algorithm>
 #include <android/input.h>
 #include <vector>
 
@@ skipping 17 matching lines @@
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_features.h"
 #include "jni/ImeAdapter_jni.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/WebTextInputType.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertJavaStringToUTF16;
+using base::android::JavaParamRef;
 
 namespace content {
 namespace {
 
 // Maps a java KeyEvent into a NativeWebKeyboardEvent.
 // |java_key_event| is used to maintain a globalref for KeyEvent.
 // |action| will help determine the WebInputEvent type.
 // type, |modifiers|, |time_ms|, |key_code|, |unicode_char| is used to create
 // WebKeyboardEvent. |key_code| is also needed ad need to treat the enter key
 // as a key press of character \r.
@@ skipping 329 matching lines @@
 }
 
 WebContents* ImeAdapterAndroid::GetWebContents() {
   RenderWidgetHostImpl* rwh = GetRenderWidgetHostImpl();
   if (!rwh)
     return nullptr;
   return WebContents::FromRenderViewHost(RenderViewHost::From(rwh));
 }
 
 }  // namespace content