[Cleanup] Remove StringPrintf from global namespace

chrome/common/thumbnail_score.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/common/thumbnail_score.h"
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
 
 using base::Time;
@@ skipping 52 matching lines @@
 
 bool ThumbnailScore::Equals(const ThumbnailScore& rhs) const {
   return boring_score == rhs.boring_score &&
       good_clipping == rhs.good_clipping &&
       at_top == rhs.at_top &&
       time_at_snapshot == rhs.time_at_snapshot &&
       redirect_hops_from_dest == rhs.redirect_hops_from_dest;
 }
 
 std::string ThumbnailScore::ToString() const {
-  return StringPrintf("boring_score: %f, at_top %d, good_clipping %d, "
-                      "load_completed: %d, "
-                      "time_at_snapshot: %f, redirect_hops_from_dest: %d",
-                      boring_score,
-                      at_top,
-                      good_clipping,
-                      load_completed,
-                      time_at_snapshot.ToDoubleT(),
-                      redirect_hops_from_dest);
+  return base::StringPrintf(
+      "boring_score: %f, at_top %d, good_clipping %d, "
+      "load_completed: %d, "
+      "time_at_snapshot: %f, redirect_hops_from_dest: %d",
+      boring_score,
+      at_top,
+      good_clipping,
+      load_completed,
+      time_at_snapshot.ToDoubleT(),
+      redirect_hops_from_dest);
 }
 
 bool ShouldReplaceThumbnailWith(const ThumbnailScore& current,
                                 const ThumbnailScore& replacement) {
   int current_type = GetThumbnailType(current);
   int replacement_type = GetThumbnailType(replacement);
   if (replacement_type < current_type) {
     // If we have a better class of thumbnail, add it if it meets
     // certain minimum boringness.
     return replacement.boring_score <
@@ skipping 38 matching lines @@
 bool ThumbnailScore::ShouldConsiderUpdating() {
   const TimeDelta time_elapsed = Time::Now() - time_at_snapshot;
   if (time_elapsed < TimeDelta::FromDays(kUpdateThumbnailTimeDays) &&
       good_clipping && at_top && load_completed) {
     // The current thumbnail is new and has good properties.
     return false;
   }
   // The current thumbnail should be updated.
   return true;
 }