Replace ToLower calls to the new format

chrome/renderer/pepper/pepper_flash_renderer_host.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/pepper/pepper_flash_renderer_host.h"
 
 #include <map>
 #include <vector>
 
 #include "base/lazy_instance.h"
@@ skipping 297 matching lines @@
     for (size_t i = 0; i < arraysize(kRejectedHttpRequestHeaders); ++i)
       rejected_headers[kRejectedHttpRequestHeaders[i]] =
           static_cast<FlashNavigateUsage>(i);
   }
 
   net::HttpUtil::HeadersIterator header_iter(
       data.headers.begin(), data.headers.end(), "\n\r");
   bool rejected = false;
   while (header_iter.GetNext()) {
     std::string lower_case_header_name =
-        base::StringToLowerASCII(header_iter.name());
+        base::ToLowerASCII(header_iter.name());
     if (!IsSimpleHeader(lower_case_header_name, header_iter.values())) {
       rejected = true;
 
       std::map<std::string, FlashNavigateUsage>::const_iterator iter =
           rejected_headers.find(lower_case_header_name);
       FlashNavigateUsage usage =
           iter != rejected_headers.end() ? iter->second : REJECT_OTHER_HEADERS;
       RecordFlashNavigateUsage(usage);
     }
   }
@@ skipping 41 matching lines @@
           rect.point.x, rect.point.y, rect.size.width, rect.size.height)))
     return PP_OK;
   return PP_ERROR_FAILED;
 }
 
 int32_t PepperFlashRendererHost::OnInvokePrinting(
     ppapi::host::HostMessageContext* host_context) {
   pdf::PepperPDFHost::InvokePrintingForInstance(pp_instance());
   return PP_OK;
 }