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

content/browser/power_save_blocker_win.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 "content/browser/power_save_blocker_impl.h"
 
 #include <windows.h>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 21 matching lines @@
   if (!PowerCreateRequestFn || !PowerSetRequestFn) {
     HMODULE module = GetModuleHandle(L"kernel32.dll");
     PowerCreateRequestFn = reinterpret_cast<PowerCreateRequestPtr>(
         GetProcAddress(module, "PowerCreateRequest"));
     PowerSetRequestFn = reinterpret_cast<PowerSetRequestPtr>(
         GetProcAddress(module, "PowerSetRequest"));
 
     if (!PowerCreateRequestFn || !PowerSetRequestFn)
       return INVALID_HANDLE_VALUE;
   }
-  base::string16 wide_reason = ASCIIToUTF16(reason);
+  base::string16 wide_reason = base::ASCIIToUTF16(reason);
   REASON_CONTEXT context = {0};
   context.Version = POWER_REQUEST_CONTEXT_VERSION;
   context.Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING;
   context.Reason.SimpleReasonString = const_cast<wchar_t*>(wide_reason.c_str());
 
   base::win::ScopedHandle handle(PowerCreateRequestFn(&context));
   if (!handle.IsValid())
     return INVALID_HANDLE_VALUE;
 
   if (PowerSetRequestFn(handle, type))
@@ skipping 112 matching lines @@
       base::Bind(&Delegate::ApplyBlock, delegate_));
 }
 
 PowerSaveBlockerImpl::~PowerSaveBlockerImpl() {
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&Delegate::RemoveBlock, delegate_));
 }
 
 }  // namespace content