safe_browsing: Simplify code in ReadData() by calling base::MD5String().

chrome/browser/safe_browsing/malware_details_cache.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.
 //
 // Implementation of the MalwareDetails class.
 
 #include "chrome/browser/safe_browsing/malware_details.h"
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
@@ skipping 161 matching lines @@
     ClientMalwareReportRequest::Resource* pb_resource,
     const std::string& data) {
   DVLOG(1) << "ReadData";
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   ClientMalwareReportRequest::HTTPResponse* pb_response =
       pb_resource->mutable_response();
   if (data.size() <= kMaxBodySizeBytes) {  // Only send small bodies for now.
     pb_response->set_body(data);
   }
   pb_response->set_bodylength(data.size());
-  base::MD5Digest digest;
-  base::MD5Sum(data.c_str(), data.size(), &digest);
-  pb_response->set_bodydigest(base::MD5DigestToBase16(digest));
+  pb_response->set_bodydigest(base::MD5String(data));
 }
 
 void MalwareDetailsCacheCollector::AdvanceEntry() {
   DVLOG(1) << "AdvanceEntry";
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   // Advance to the next resource.
   ++resources_it_;
   current_fetch_.reset(NULL);
 
   // Create a task so we don't take over the IO thread for too long.
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&MalwareDetailsCacheCollector::OpenEntry, this));
 }
 
 void MalwareDetailsCacheCollector::AllDone(bool success) {
   DVLOG(1) << "AllDone";
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   *result_ = success;
   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, callback_);
   callback_.Reset();
 }