Add missing using statements for JNI types.

content/browser/android/content_view_render_view.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_render_view.h"
 
 #include <android/bitmap.h>
 #include <android/native_window_jni.h>
 
 #include <memory>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
 #include "cc/layers/layer.h"
 #include "content/public/browser/android/compositor.h"
 #include "content/public/browser/android/content_view_layer_renderer.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/ContentViewRenderView_jni.h"
 #include "ui/android/view_android.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/geometry/size.h"
 
+using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace content {
 
 // static
 bool ContentViewRenderView::RegisterContentViewRenderView(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 ContentViewRenderView::ContentViewRenderView(JNIEnv* env,
@@ skipping 76 matching lines @@
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ContentViewRenderView_onSwapBuffersCompleted(env, java_obj_.obj());
 }
 
 void ContentViewRenderView::InitCompositor() {
   if (!compositor_)
     compositor_.reset(Compositor::Create(this, root_window_));
 }
 
 }  // namespace content