Move RemoveChars, ReplaceChars, TrimString, and TruncateUTF8ToByteSize to base namespace.

chrome/browser/nacl_host/nacl_browser_delegate_impl.cc

 // Copyright 2013 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/nacl_host/nacl_browser_delegate_impl.h"
 
 #include "base/path_service.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 120 matching lines @@
       extension_info_map_->extensions().GetExtensionOrAppByURL(file_url);
   if (!extension)
     return false;
 
   // This is a short-cut which avoids calling a blocking file operation
   // (GetFilePath()), so that this can be called on the IO thread. It only
   // handles a subset of the urls.
   if (!use_blocking_api) {
     if (file_url.SchemeIs(extensions::kExtensionScheme)) {
       std::string path = file_url.path();
-      TrimString(path, "/", &path);  // Remove first slash
+      base::TrimString(path, "/", &path);  // Remove first slash
       *file_path = extension->path().AppendASCII(path);
       return true;
     }
     return false;
   }
 
   std::string path = file_url.path();
   extensions::ExtensionResource resource;
 
   if (SharedModuleInfo::IsImportedPath(path)) {
@@ skipping 22 matching lines @@
     return false;
 
   // GetFilePath is a blocking function call.
   const base::FilePath resource_file_path = resource.GetFilePath();
   if (resource_file_path.empty())
     return false;
 
   *file_path = resource_file_path;
   return true;
 }