Eliminate defines in talk/

talk/media/devices/v4llookup.h

 /*
  * libjingle
  * Copyright 2009 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 19 matching lines @@
  *
  * V4LLookup provides basic functionality to work with V2L2 devices in Linux
  * The functionality is implemented as a class with virtual methods for
  * the purpose of unit testing.
  */
 #ifndef TALK_MEDIA_DEVICES_V4LLOOKUP_H_
 #define TALK_MEDIA_DEVICES_V4LLOOKUP_H_
 
 #include <string>
 
-#ifdef LINUX
+#ifdef WEBRTC_LINUX
 namespace cricket {
 class V4LLookup {
  public:
   virtual ~V4LLookup() {}
 
   static bool IsV4L2Device(const std::string& device_path) {
     return GetV4LLookup()->CheckIsV4L2Device(device_path);
   }
 
   static void SetV4LLookup(V4LLookup* v4l_lookup) {
     v4l_lookup_ = v4l_lookup;
   }
 
   static V4LLookup* GetV4LLookup() {
     if (!v4l_lookup_) {
       v4l_lookup_ = new V4LLookup();
     }
     return v4l_lookup_;
   }
 
  protected:
   static V4LLookup* v4l_lookup_;
   // Making virtual so it is easier to mock
   virtual bool CheckIsV4L2Device(const std::string& device_path);
 };
 
 }  // namespace cricket
 
-#endif  // LINUX
+#endif  // WEBRTC_LINUX
 #endif  // TALK_MEDIA_DEVICES_V4LLOOKUP_H_