Remove NPAPI command line flags entirely.

content/public/browser/content_browser_client.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 544 matching lines @@
   virtual LocationProvider* OverrideSystemLocationProvider();
 
   // Creates a new DevToolsManagerDelegate. The caller owns the returned value.
   // It's valid to return nullptr.
   virtual DevToolsManagerDelegate* GetDevToolsManagerDelegate();
 
   // Creates a new TracingDelegate. The caller owns the returned value.
   // It's valid to return nullptr.
   virtual TracingDelegate* GetTracingDelegate();
 
+  // Returns true if NPAPI plugins are enabled.
+  virtual bool IsNPAPIEnabled();
+
   // Returns true if plugin referred to by the url can use
   // pp::FileIO::RequestOSFileHandle.
   virtual bool IsPluginAllowedToCallRequestOSFileHandle(
       BrowserContext* browser_context,
       const GURL& url);
 
   // Returns true if dev channel APIs are available for plugins.
   virtual bool IsPluginAllowedToUseDevChannelAPIs(
       BrowserContext* browser_context,
       const GURL& url);
@@ skipping 89 matching lines @@
   // Allows an embedder to provide its own ExternalVideoSurfaceContainer
   // implementation.  Return nullptr to disable external surface video.
   virtual ExternalVideoSurfaceContainer*
   OverrideCreateExternalVideoSurfaceContainer(WebContents* web_contents);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_