Add PathService::Get(chrome::DIR_USER_PICTURES).

chrome/common/chrome_paths_mac.mm

 // 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.
 
 #include "chrome/common/chrome_paths_internal.h"
 
 #import <Foundation/Foundation.h>
 #include <string.h>
 
 #include <string>
@@ skipping 117 matching lines @@
   if (!app_data_dir.AppendRelativePath(profile_dir, &cache_dir))
     return;
 
   *result = cache_dir;
 }
 
 bool GetUserDownloadsDirectory(FilePath* result) {
   return base::mac::GetUserDirectory(NSDownloadsDirectory, result);
 }
 
+bool GetUserPicturesDirectory(FilePath* result) {
+  return base::mac::GetUserDirectory(NSPicturesDirectory, result);
+}
+
 bool GetUserDesktop(FilePath* result) {
   return base::mac::GetUserDirectory(NSDesktopDirectory, result);
 }
 
 FilePath GetVersionedDirectory() {
   if (g_override_versioned_directory)
     return *g_override_versioned_directory;
 
   // Start out with the path to the running executable.
   FilePath path;
@@ skipping 51 matching lines @@
   return bundle;
 }
 
 bool ProcessNeedsProfileDir(const std::string& process_type) {
   // For now we have no reason to forbid this on other MacOS as we don't
   // have the roaming profile troubles there.
   return true;
 }
 
 }  // namespace chrome