Remove two unused logging::LogMessage constructors.

base/logging.h

 // 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.
 
 #ifndef BASE_LOGGING_H_
 #define BASE_LOGGING_H_
 
 #include <cassert>
 #include <string>
 #include <cstring>
@@ skipping 666 matching lines @@
 // This class more or less represents a particular log message.  You
 // create an instance of LogMessage and then stream stuff to it.
 // When you finish streaming to it, ~LogMessage is called and the
 // full message gets streamed to the appropriate destination.
 //
 // You shouldn't actually use LogMessage's constructor to log things,
 // though.  You should use the LOG() macro (and variants thereof)
 // above.
 class BASE_EXPORT LogMessage {
  public:
-  LogMessage(const char* file, int line, LogSeverity severity, int ctr);
-
-  // Two special constructors that generate reduced amounts of code at
-  // LOG call sites for common cases.
-  //
-  // Used for LOG(INFO): Implied are:
-  // severity = LOG_INFO, ctr = 0
-  //
-  // Using this constructor instead of the more complex constructor above
-  // saves a couple of bytes per call site.
-  LogMessage(const char* file, int line);
-
-  // Used for LOG(severity) where severity != INFO.  Implied
-  // are: ctr = 0
-  //
-  // Using this constructor instead of the more complex constructor above
-  // saves a couple of bytes per call site.
+  // Used for LOG(severity).
   LogMessage(const char* file, int line, LogSeverity severity);
 
-  // A special constructor used for check failures.  Takes ownership
-  // of the given string.
-  // Implied severity = LOG_FATAL
+  // Used for CHECK_EQ(), etc. Takes ownership of the given string.
+  // Implied severity = LOG_FATAL.
   LogMessage(const char* file, int line, std::string* result);
 
-  // A special constructor used for check failures, with the option to
-  // specify severity.  Takes ownership of the given string.
+  // Used for DCHECK_EQ(), etc. Takes ownership of the given string.
   LogMessage(const char* file, int line, LogSeverity severity,
              std::string* result);
 
   ~LogMessage();
 
   std::ostream& stream() { return stream_; }
 
  private:
   void Init(const char* file, int line);
 
@@ skipping 175 matching lines @@
 #elif NOTIMPLEMENTED_POLICY == 5
 #define NOTIMPLEMENTED() do {\
   static bool logged_once = false;\
   LOG_IF(ERROR, !logged_once) << NOTIMPLEMENTED_MSG;\
   logged_once = true;\
 } while(0);\
 EAT_STREAM_PARAMETERS
 #endif
 
 #endif  // BASE_LOGGING_H_