Add/improve a bunch of comments...

chrome/browser/browser_about_handler.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/browser/browser_about_handler.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 135 matching lines @@
 #endif
   kDnsPath,
   kFlagsPath,
   kGpuPath,
   kHistogramsPath,
   kMemoryPath,
   kNetInternalsPath,
   kPluginsPath,
   kStatsPath,
   kSyncInternalsPath,
+#ifdef TRACK_ALL_TASK_OBJECTS
   kTasksPath,
+#endif  // TRACK_ALL_TASK_OBJECTS
   kTcmallocPath,
   kTermsPath,
   kVersionPath,
 #if defined(OS_LINUX)
   kSandboxPath,
 #endif
 #if defined(OS_CHROMEOS)
   kNetworkPath,
   kOSCreditsPath,
 #endif
@@ skipping 962 matching lines @@
   return false;
 }
 
 std::vector<std::string> AboutPaths() {
   std::vector<std::string> paths;
   paths.reserve(arraysize(kAllAboutPaths));
   for (size_t i = 0; i < arraysize(kAllAboutPaths); i++)
     paths.push_back(kAllAboutPaths[i]);
   return paths;
 }