Pass JavaRef to WebContents::FromJavaWebContents.

chrome/browser/android/contextualsearch/contextual_search_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
 #define CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
 
 #include <stddef.h>
 
 #include "base/android/jni_android.h"
 #include "base/macros.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/android/contextualsearch/contextual_search_context.h"
 #include "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
 #include "components/contextual_search/browser/contextual_search_js_api_handler.h"
 
 // Manages the native extraction and request logic for Contextual Search,
 // and interacts with the Java ContextualSearchManager for UX.
 // Most of the work is done by the associated ContextualSearchDelegate.
 class ContextualSearchManager
     : public contextual_search::ContextualSearchJsApiHandler {
  public:
   // Constructs a native manager associated with the Java manager.
-  ContextualSearchManager(JNIEnv* env, jobject obj);
+  ContextualSearchManager(JNIEnv* env,
+                          const base::android::JavaRef<jobject>& obj);
   ~ContextualSearchManager() override;
 
   // Called by the Java ContextualSearchManager when it is being destroyed.
   void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   // Starts the request to get the search terms to use for the given selection,
   // by accessing our server with the content of the page (from the given
   // content view core object).
   // Any outstanding server requests are canceled.
   // When the server responds with the search term, the Java object is notified
@@ skipping 54 matching lines @@
 
   // The delegate we're using the do the real work.
   std::unique_ptr<ContextualSearchDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ContextualSearchManager);
 };
 
 bool RegisterContextualSearchManager(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_