Announce to Omaha that Chrome accepts CRX₂ and CRX₃ files.

components/update_client/update_query_params.cc

 // Copyright 2014 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 "components/update_client/update_query_params.h"
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "components/update_client/update_query_params_delegate.h"
@@ skipping 53 matching lines @@
 const char kChromiumCrx[] = "chromiumcrx";
 #endif  // defined(GOOGLE_CHROME_BUILD)
 
 UpdateQueryParamsDelegate* g_delegate = NULL;
 
 }  // namespace
 
 // static
 std::string UpdateQueryParams::Get(ProdId prod) {
   return base::StringPrintf(
-      "os=%s&arch=%s&nacl_arch=%s&prod=%s%s", kOs, kArch, GetNaclArch(),
-      GetProdIdString(prod),
+      "os=%s&arch=%s&nacl_arch=%s&prod=%s%s&acceptformat=crx2,crx3", kOs, kArch,
+      GetNaclArch(), GetProdIdString(prod),
       g_delegate ? g_delegate->GetExtraParams().c_str() : "");
 }
 
 // static
 const char* UpdateQueryParams::GetProdIdString(UpdateQueryParams::ProdId prod) {
   switch (prod) {
     case UpdateQueryParams::CHROME:
       return kChrome;
       break;
     case UpdateQueryParams::CRX:
@@ skipping 49 matching lines @@
   return version_info::GetVersionNumber();
 }
 
 // static
 void UpdateQueryParams::SetDelegate(UpdateQueryParamsDelegate* delegate) {
   DCHECK(!g_delegate || !delegate || (delegate == g_delegate));
   g_delegate = delegate;
 }
 
 }  // namespace update_client