enable download protection on CrOS

chrome/browser/safe_browsing/download_protection_service.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/safe_browsing/download_protection_service.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/format_macros.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 651 matching lines @@
           return;
         }
       }
     }
 
     if (!pingback_enabled_) {
       PostFinishTask(UNKNOWN, REASON_PING_DISABLED);
       return;
     }
 
-    // Currently, the UI is only enabled on Windows and OSX so we don't even
-    // bother with pinging the server if we're not on one of those platforms.
-    // TODO(noelutz): change this code once the UI is done for Linux.
-#if defined(OS_WIN) || defined(OS_MACOSX)
+// Currently, the UI is enabled on Windows, OSX and chrome OS. we don't ping
+// the server if we're not on one of those platforms.
+// TODO(noelutz): change this code once the UI is done for Linux.
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
     // The URLFetcher is owned by the UI thread, so post a message to
     // start the pingback.
     BrowserThread::PostTask(
         BrowserThread::UI,
         FROM_HERE,
         base::Bind(&CheckClientDownloadRequest::GetTabRedirects, this));
 #else
     PostFinishTask(UNKNOWN, REASON_OS_NOT_SUPPORTED);
 #endif
   }
@@ skipping 324 matching lines @@
   // The client will release itself once it is done.
   BrowserThread::PostTask(
         BrowserThread::IO,
         FROM_HERE,
         base::Bind(&DownloadUrlSBClient::StartCheck, client));
 }
 
 bool DownloadProtectionService::IsSupportedDownload(
     const content::DownloadItem& item,
     const base::FilePath& target_path) const {
-  // Currently, the UI is only enabled on Windows and OSX.  On Linux we still
-  // want to show the dangerous file type warning if the file is possibly
-  // dangerous which means we have to always return false here.
-#if defined(OS_WIN) || defined(OS_MACOSX)
+// Currently, the UI is only enabled on Windows, OSX and Chrome OS. On
+// Linux we still want to show the dangerous file type warning if the file
+// is possibly dangerous which means we have to always return false here.
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
   DownloadCheckResultReason reason = REASON_MAX;
   ClientDownloadRequest::DownloadType type =
       ClientDownloadRequest::WIN_EXECUTABLE;
   return (CheckClientDownloadRequest::IsSupportedDownload(
               item, target_path, &reason, &type) &&
           (ClientDownloadRequest::CHROME_EXTENSION != type));
 #else
   return false;
 #endif
 }
@@ skipping 123 matching lines @@
 GURL DownloadProtectionService::GetDownloadRequestUrl() {
   GURL url(kDownloadRequestUrl);
   std::string api_key = google_apis::GetAPIKey();
   if (!api_key.empty())
     url = url.Resolve("?key=" + net::EscapeQueryParamValue(api_key, true));
 
   return url;
 }
 
 }  // namespace safe_browsing