Remove unused and rarely used LOG_ macros.

webrtc/system_wrappers/include/logging.h

 /*
  *  Copyright (c) 2012 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 18 matching lines @@
 //   There are several variations on the LOG macro which facilitate logging
 // of common error conditions, detailed below.
 
 // LOG(sev) logs the given stream at severity "sev", which must be a
 //     compile-time constant of the LoggingSeverity type, without the namespace
 //     prefix.
 // LOG_V(sev) Like LOG(), but sev is a run-time variable of the LoggingSeverity
 //     type (basically, it just doesn't prepend the namespace).
 // LOG_F(sev) Like LOG(), but includes the name of the current function.
 
-// Additional helper macros added by WebRTC:
-// LOG_API is a shortcut for API call logging. Pass in the input parameters of
-// the method. For example:
-//   Foo(int bar, int baz) {
-//     LOG_API2(bar, baz);
-//   }
-//
-// LOG_FERR is a shortcut for logging a failed function call. For example:
-//   if (!Foo(bar)) {
-//     LOG_FERR1(LS_WARNING, Foo, bar);
-//   }
-
 #ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_LOGGING_H_
 #define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_LOGGING_H_
 
 #include <sstream>
 
 namespace webrtc {
 
 //////////////////////////////////////////////////////////////////////
 
 // Note that the non-standard LoggingSeverity aliases exist because they are
@@ skipping 69 matching lines @@
   LOG_SEVERITY_PRECONDITION(sev) \
     webrtc::LogMessage(__FILE__, __LINE__, sev).stream()
 
 // The _F version prefixes the message with the current function name.
 #if (defined(__GNUC__) && !defined(NDEBUG)) || defined(WANT_PRETTY_LOG_F)
 #define LOG_F(sev) LOG(sev) << __PRETTY_FUNCTION__ << ": "
 #else
 #define LOG_F(sev) LOG(sev) << __FUNCTION__ << ": "
 #endif
 
-#define LOG_API0() LOG_F(LS_VERBOSE)
-#define LOG_API1(v1) LOG_API0() << #v1 << "=" << v1
-#define LOG_API2(v1, v2) LOG_API1(v1) \
-    << ", " << #v2 << "=" << v2
-#define LOG_API3(v1, v2, v3) LOG_API2(v1, v2) \
-    << ", " << #v3 << "=" << v3
-
-#define LOG_FERR0(sev, func) LOG(sev) << #func << " failed"
-#define LOG_FERR1(sev, func, v1) LOG_FERR0(sev, func) \
-    << ": " << #v1 << "=" << v1
-#define LOG_FERR2(sev, func, v1, v2) LOG_FERR1(sev, func, v1) \
-    << ", " << #v2 << "=" << v2
-#define LOG_FERR3(sev, func, v1, v2, v3) LOG_FERR2(sev, func, v1, v2) \
-    << ", " << #v3 << "=" << v3
-#define LOG_FERR4(sev, func, v1, v2, v3, v4) LOG_FERR3(sev, func, v1, v2, v3) \
-    << ", " << #v4 << "=" << v4
-
 #endif  // LOG
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_LOGGING_H_