Eliminate defines in talk/

webrtc/base/unixfilesystem.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 355 matching lines @@
   CFStringRef cfpath = (CFStringRef) CFDictionaryGetValue(procinfo,
       kIOBundleExecutableKey);
   std::string path8;
   bool success = ToUtf8(cfpath, &path8);
   CFRelease(procinfo);
   if (success)
     path->SetPathname(path8);
   return success;
 #elif defined(__native_client__)
   return false;
-#elif IOS
+#elif WEBRTC_IOS
   IOSAppName(path);
   return true;
 #else  // WEBRTC_MAC && !defined(WEBRTC_IOS)
   char buffer[PATH_MAX + 2];
   ssize_t len = readlink("/proc/self/exe", buffer, arraysize(buffer) - 1);
   if ((len <= 0) || (len == PATH_MAX + 1))
     return false;
   buffer[len] = '\0';
   path->SetPathname(buffer);
   return true;
@@ skipping 178 matching lines @@
 
 }  // namespace rtc
 
 #if defined(__native_client__)
 extern "C" int __attribute__((weak))
 link(const char* oldpath, const char* newpath) {
   errno = EACCES;
   return -1;
 }
 #endif