Chrome version info getter for Chrome OS.

chrome/common/chrome_version_info_linux.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 "chrome/common/chrome_version_info.h"
 
 namespace chrome {
 
-// static. Warning: this may be either Linux or ChromeOS.
+// static
 std::string VersionInfo::GetVersionStringModifier() {
   char* env = getenv("CHROME_VERSION_EXTRA");
   if (!env)
     return std::string();
   std::string modifier(env);
 
 #if defined(GOOGLE_CHROME_BUILD)
   // Only ever return "", "unknown", "dev" or "beta" in a branded build.
   if (modifier == "unstable")  // linux version of "dev"
     modifier = "dev";
   if (modifier == "stable") {
     modifier = "";
   } else if ((modifier == "dev") || (modifier == "beta")) {
     // do nothing.
   } else {
     modifier = "unknown";
   }
 #endif
 
   return modifier;
 }
 
-// static. Warning: this may be either Linux or ChromeOS.
+// static
 VersionInfo::Channel VersionInfo::GetChannel() {
 #if defined(GOOGLE_CHROME_BUILD)
   std::string channel = GetVersionStringModifier();
   if (channel.empty()) {
     return CHANNEL_STABLE;
   } else if (channel == "beta") {
     return CHANNEL_BETA;
   } else if (channel == "dev") {
     return CHANNEL_DEV;
   } else if (channel == "canary") {
     return CHANNEL_CANARY;
   }
 #endif
 
   return CHANNEL_UNKNOWN;
 }
 
 }  // namespace chrome