Add explicit base namespace to string16 users.

chrome/common/badge_util.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/badge_util.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
 #include "third_party/skia/include/core/SkPaint.h"
@@ skipping 76 matching lines @@
     }
 
     text_paint->setTypeface(typeface.get());
     // |text_paint| adds its own ref. Release the ref from CreateFontName.
   }
   return text_paint;
 }
 
 SkBitmap DrawBadgeIconOverlay(const SkBitmap& icon,
                               float font_size,
-                              const string16& text,
-                              const string16& fallback) {
+                              const base::string16& text,
+                              const base::string16& fallback) {
   const int kMinPadding = 1;
 
   // Calculate the proper style/text overlay to render on the badge.
   SkPaint* paint = badge_util::GetBadgeTextPaintSingleton();
   paint->setTextSize(SkFloatToScalar(font_size));
   paint->setColor(SK_ColorWHITE);
 
   std::string badge_text = UTF16ToUTF8(text);
 
   // See if the text will fit - otherwise use a default.
@@ skipping 111 matching lines @@
   canvas->sk_canvas()->drawText(
       text.c_str(), text.size(),
       SkFloatToScalar(rect.x() +
                       static_cast<float>(rect.width() - text_width) / 2),
       SkFloatToScalar(rect.y() + kTextSize + kTopTextPadding),
       *text_paint);
   canvas->Restore();
 }
 
 }  // namespace badge_util