AU: Try delta updates first, then full updates

src/platform/update_engine/update_check_action_unittest.cc

 // Copyright (c) 2009 The Chromium OS 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 <string>
 #include <vector>
 #include <glib.h>
 #include <gtest/gtest.h>
 #include "update_engine/action_pipe.h"
 #include "update_engine/update_check_action.h"
@@ skipping 36 matching lines @@
       "size=\"" + size + "\" status=\"ok\"/></app></gupdate>";
 }
 
 class UpdateCheckActionTestProcessorDelegate : public ActionProcessorDelegate {
  public:
   UpdateCheckActionTestProcessorDelegate()
       : loop_(NULL),
         expected_success_(true) {}
   virtual ~UpdateCheckActionTestProcessorDelegate() {
   }
-  virtual void ProcessingDone(const ActionProcessor* processor) {
+  virtual void ProcessingDone(const ActionProcessor* processor, bool success) {
     ASSERT_TRUE(loop_);
     g_main_loop_quit(loop_);
   }
 
   virtual void ActionCompleted(ActionProcessor* processor,
                                AbstractAction* action,
                                bool success) {
     // make sure actions always succeed
     if (action->Type() == UpdateCheckAction::StaticType())
       EXPECT_EQ(expected_success_, success);
@@ skipping 435 matching lines @@
                                               // overflows int32:
                                               "123123123123123"),  // size
                             true,
                             &response,
                             NULL));
 
   EXPECT_EQ(response.size, 123123123123123ll);
 }
 
 }  // namespace chromeos_update_engine