Add missing using statements for JNI types.

chrome/browser/android/contextualsearch/contextual_search_manager.cc

 // Copyright 2015 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 "chrome/browser/android/contextualsearch/contextual_search_manager.h"
 
 #include <set>
 
 #include "base/android/jni_string.h"
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
 #include "chrome/browser/android/contextualsearch/resolved_search_term.h"
 #include "chrome/browser/android/tab_android.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "components/contextual_search/browser/contextual_search_js_api_service_impl.h"
 #include "components/contextual_search/common/overlay_page_notifier_service.mojom.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
 #include "components/variations/variations_associated_data.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/ContextualSearchManager_jni.h"
 #include "net/url_request/url_fetcher_impl.h"
 #include "services/shell/public/cpp/interface_provider.h"
 #include "services/shell/public/cpp/interface_registry.h"
 
+using base::android::JavaParamRef;
 using content::WebContents;
 
 // This class manages the native behavior of the Contextual Search feature.
 // Instances of this class are owned by the Java ContextualSearchManager.
 // Most of the work is actually done in an associated delegate to this class:
 // the ContextualSearchDelegate.
 ContextualSearchManager::ContextualSearchManager(JNIEnv* env, jobject obj) {
   java_manager_.Reset(env, obj);
   Java_ContextualSearchManager_setNativeManager(
       env, obj, reinterpret_cast<intptr_t>(this));
@@ skipping 160 matching lines @@
 }
 
 void ContextualSearchManager::SetCaption(std::string caption,
                                          bool does_answer) {
   JNIEnv* env = base::android::AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jstring> j_caption =
       base::android::ConvertUTF8ToJavaString(env, caption.c_str());
   Java_ContextualSearchManager_onSetCaption(env, java_manager_.obj(),
                                             j_caption.obj(), does_answer);
 }