Update uses of UTF conversions in content/ to use the base:: namespace.

content/child/npapi/webplugin_delegate_impl_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 "content/child/npapi/webplugin_delegate_impl.h"
 
 #import <Cocoa/Cocoa.h>
 #import <QuartzCore/QuartzCore.h>
 #include <unistd.h>
 
@@ skipping 211 matching lines @@
 
         gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
         // On dual GPU systems, force the use of the discrete GPU for
         // the CARenderer underlying our Core Animation backend for
         // all plugins except Flash. For some reason Unity3D's output
         // doesn't show up if the integrated GPU is used. Safari keeps
         // even Flash 11 with Stage3D on the integrated GPU, so mirror
         // that behavior here.
         const WebPluginInfo& plugin_info =
             instance_->plugin_lib()->plugin_info();
-        if (plugin_info.name.find(ASCIIToUTF16("Flash")) !=
+        if (plugin_info.name.find(base::ASCIIToUTF16("Flash")) !=
             base::string16::npos)
           gpu_preference = gfx::PreferIntegratedGpu;
         surface_ = plugin_->GetAcceleratedSurface(gpu_preference);
 
         // If surface initialization fails for some reason, just continue
         // without any drawing; returning false would be a more confusing user
         // experience (since it triggers a missing plugin placeholder).
         if (surface_ && surface_->context()) {
           renderer_ = [[CARenderer rendererWithCGLContext:surface_->context()
                                                   options:NULL] retain];
@@ skipping 476 matching lines @@
                               window_rect_.width(), window_rect_.height())];
   [CATransaction commit];
 
   [renderer_ setBounds:[layer_ bounds]];
   surface_->SetSize(window_rect_.size());
   // Kick off the drawing timer, if necessary.
   PluginVisibilityChanged();
 }
 
 }  // namespace content