Remove --pnacl-dir override flag.

chrome/common/chrome_switches.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 "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 1112 matching lines @@
 // such as extension-related occurrences and crashes. Optionally, this may be
 // run with an integer value representing the interval between the timed
 // metric gatherings, measured in seconds (if invalid or not provided, the
 // default interval is used).
 const char kPerformanceMonitorGathering[]   = "performance-monitor-gathering";
 
 // Read previously recorded data from the cache. Only cached data is read.
 // See kRecordMode.
 const char kPlaybackMode[]                  = "playback-mode";
 
-// Overrides the path to the location that PNaCl is installed.
-const char kPnaclDir[]                      = "pnacl-dir";
-
 // Use the PPAPI (Pepper) Flash found at the given path.
 const char kPpapiFlashPath[]                = "ppapi-flash-path";
 
 // Report the given version for the PPAPI (Pepper) Flash. The version should be
 // numbers separated by '.'s (e.g., "12.3.456.78"). If not specified, it
 // defaults to "10.2.999.999".
 const char kPpapiFlashVersion[]             = "ppapi-flash-version";
 
 // Triggers prerendering of search base page to prefetch results for the typed
 // omnibox query. Only has an effect when prerender is enabled.
@@ skipping 500 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches