Remove PNaCl's RequestFirstInstall, use resource throttle instead

components/nacl/common/nacl_browser_delegate.h

 // Copyright 2013 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 COMPONENTS_NACL_COMMON_NACL_BROWSER_DELEGATE_H_
 #define COMPONENTS_NACL_COMMON_NACL_BROWSER_DELEGATE_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
@@ skipping 50 matching lines @@
   // full pathname of a file in the local filesystem. |file_path| should not be
   // changed on failure. This mapping should be a best effort, for example,
   // "chrome-extension:" could be mapped to the location of unpacked
   // extensions. If this method is called in a blocking thread you should set
   // |use_blocking_api| to true, so calling blocking file API is allowed
   // otherwise non blocking API will be used (which only handles a subset of the
   // urls checking only the url scheme against kExtensionScheme).
   virtual bool MapUrlToLocalFilePath(const GURL& url,
                                      bool use_blocking_api,
                                      base::FilePath* file_path) = 0;
-  // Install PNaCl if this operation is supported. On success, the |installed|
-  // callback should be called with true, and on failure (or not supported),
-  // the |installed| callback should be called with false.
-  // TODO(jvoung): Add the progress callback as well.
-  virtual void TryInstallPnacl(
-      const base::Callback<void(bool)>& installed) = 0;
-
   // Set match patterns which will be checked before enabling debug stub.
   virtual void SetDebugPatterns(std::string debug_patterns) = 0;
 
   // Returns whether NaCl application with this manifest URL should be debugged.
   virtual bool URLMatchesDebugPatterns(const GURL& manifest_url) = 0;
 };
 
 #endif  // COMPONENTS_NACL_COMMON_NACL_BROWSER_DELEGATE_H_