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

chrome/renderer/safe_browsing/phishing_url_feature_extractor.cc

 // 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/renderer/safe_browsing/phishing_url_feature_extractor.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 12 matching lines @@
 
 PhishingUrlFeatureExtractor::~PhishingUrlFeatureExtractor() {}
 
 bool PhishingUrlFeatureExtractor::ExtractFeatures(const GURL& url,
                                                   FeatureMap* features) {
   base::ElapsedTimer timer;
   if (url.HostIsIPAddress()) {
     if (!features->AddBooleanFeature(features::kUrlHostIsIpAddress))
       return false;
   } else {
+    // Remove any leading/trailing dots.
     std::string host;
-    TrimString(url.host(), ".", &host);  // Remove any leading/trailing dots.
+    base::TrimString(url.host(), ".", &host);
 
     // TODO(bryner): Ensure that the url encoding is consistent with
     // the features in the model.
 
     // Disallow unknown registries so that we don't classify
     // partial hostnames (e.g. "www.subdomain").
     size_t registry_length =
         net::registry_controlled_domains::GetRegistryLength(
             host,
             net::registry_controlled_domains::EXCLUDE_UNKNOWN_REGISTRIES,
@@ skipping 70 matching lines @@
   // Copy over only the splits that are 3 or more chars long.
   // TODO(bryner): Determine a meaningful min size.
   for (std::vector<std::string>::iterator it = raw_splits.begin();
        it != raw_splits.end(); ++it) {
     if (it->length() >= kMinPathComponentLength)
       tokens->push_back(*it);
   }
 }
 
 }  // namespace safe_browsing