NaCl cleanup: Remove not-very-useful debug logging in the plugin code

components/nacl/renderer/plugin/utility.cc

 /*
  * Copyright (c) 2011 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.
  */
 
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-
 #include "components/nacl/renderer/plugin/utility.h"
 #include "ppapi/cpp/module.h"
 
 namespace plugin {
 
-int gNaClPluginDebugPrintEnabled = -1;
-
-/*
- * Prints formatted message to the log.
- */
-int NaClPluginPrintLog(const char *format, ...) {
-  va_list arg;
-  int out_size;
-
-  static const int kStackBufferSize = 512;
-  char stack_buffer[kStackBufferSize];
-
-  // Just log locally to stderr if we can't use the nacl interface.
-  if (!GetNaClInterface()) {
-    va_start(arg, format);
-    int rc = vfprintf(stderr, format, arg);
-    va_end(arg);
-    return rc;
-  }
-
-  va_start(arg, format);
-  out_size = vsnprintf(stack_buffer, kStackBufferSize, format, arg);
-  va_end(arg);
-  if (out_size < kStackBufferSize) {
-    GetNaClInterface()->Vlog(stack_buffer);
-  } else {
-    // Message too large for our stack buffer; we have to allocate memory
-    // instead.
-    char *buffer = static_cast<char*>(malloc(out_size + 1));
-    va_start(arg, format);
-    vsnprintf(buffer, out_size + 1, format, arg);
-    va_end(arg);
-    GetNaClInterface()->Vlog(buffer);
-    free(buffer);
-  }
-  return out_size;
-}
-
-/*
- * Currently looks for presence of NACL_PLUGIN_DEBUG and returns
- * 0 if absent and 1 if present.  In the future we may include notions
- * of verbosity level.
- */
-int NaClPluginDebugPrintCheckEnv() {
-  char* env = getenv("NACL_PLUGIN_DEBUG");
-  return (NULL != env);
-}
-
 // We cache the NaCl interface pointer and ensure that its set early on, on the
 // main thread. This allows GetNaClInterface() to be used from non-main threads.
 static const PPB_NaCl_Private* g_nacl_interface = NULL;
 
 const PPB_NaCl_Private* GetNaClInterface() {
   return g_nacl_interface;
 }
 
 void SetNaClInterface(const PPB_NaCl_Private* nacl_interface) {
   g_nacl_interface = nacl_interface;
 }
 
 }  // namespace plugin