Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/browser/memory_purger.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/browser/memory_purger.h"
 
 #include <set>
 
 #include "base/allocator/allocator_extension.h"
 #include "base/bind.h"
@@ skipping 102 matching lines @@
     // hasn't been done already.
     HistoryService* history_service =
         HistoryServiceFactory::GetForProfileWithoutCreating(profiles[i]);
     if (history_service)
       history_service->UnloadBackend();
 
     // Unload all web databases (freeing memory used to cache sqlite).
     WebDataServiceWrapper* wds_wrapper =
         WebDataServiceFactory::GetForProfileIfExists(
             profiles[i], Profile::EXPLICIT_ACCESS);
-    if (wds_wrapper && wds_wrapper->GetWebData())
+    if (wds_wrapper && wds_wrapper->GetWebData().get())
       wds_wrapper->GetWebData()->UnloadDatabase();
 
     BrowserContext::PurgeMemory(profiles[i]);
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&PurgeMemoryIOHelper::PurgeMemoryOnIOThread,
                  purge_memory_io_helper.get()));
 
@@ skipping 20 matching lines @@
           content::RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance())
     PurgeRendererForHost(i.GetCurrentValue());
 }
 
 // static
 void MemoryPurger::PurgeRendererForHost(content::RenderProcessHost* host) {
   // Direct the renderer to free everything it can.
   host->Send(new ChromeViewMsg_PurgeMemory());
 }