Disables pinned tabs until I land apps. I've #ifdef parts that are...

chrome/common/chrome_switches.h

 // Copyright (c) 2009 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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 113 matching lines @@
 extern const char kNoEvents[];
 extern const char kNoFirstRun[];
 extern const char kNoJsRandomness[];
 extern const char kNoProxyServer[];
 extern const char kNoSandbox[];
 extern const char kOmniBoxPopupCount[];
 extern const char kOpenInNewWindow[];
 extern const char kPackExtension[];
 extern const char kPackExtensionKey[];
 extern const char kParentProfile[];
-extern const char kPinnedTabCount[];
 extern const char kPlaybackMode[];
 extern const char kPluginDataDir[];
 extern const char kPluginLauncher[];
 extern const char kPluginPath[];
 extern const char kPluginProcess[];
 extern const char kPluginStartupDialog[];
 extern const char kPrint[];
 extern const char kProcessPerSite[];
 extern const char kProcessPerTab[];
 extern const char kProfileImportProcess[];
@@ skipping 79 matching lines @@
 extern const char kGearsPluginPathOverride[];
 extern const char kInvalidateSyncLogin[];
 #endif
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_