AU: Try delta updates first, then full updates

src/platform/update_engine/download_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/download_action.h"
@@ skipping 10 matching lines @@
 class DownloadActionTest : public ::testing::Test { };
 
 namespace {
 class DownloadActionTestProcessorDelegate : public ActionProcessorDelegate {
  public:
   DownloadActionTestProcessorDelegate()
       : loop_(NULL), processing_done_called_(false) {}
   virtual ~DownloadActionTestProcessorDelegate() {
     EXPECT_TRUE(processing_done_called_);
   }
-  virtual void ProcessingDone(const ActionProcessor* processor) {
+  virtual void ProcessingDone(const ActionProcessor* processor, bool success) {
     ASSERT_TRUE(loop_);
     g_main_loop_quit(loop_);
     vector<char> found_data;
     ASSERT_TRUE(utils::ReadFile(path_, &found_data));
     ASSERT_EQ(expected_data_.size(), found_data.size());
     for (unsigned i = 0; i < expected_data_.size(); i++) {
       EXPECT_EQ(expected_data_[i], found_data[i]);
     }
     processing_done_called_ = true;
   }
@@ skipping 165 matching lines @@
   InstallPlan expected_input_object_;
   bool did_run_;
 };
 
 namespace {
 // This class is an ActionProcessorDelegate that simply terminates the
 // run loop when the ActionProcessor has completed processing. It's used
 // only by the test PassObjectOutTest.
 class PassObjectOutTestProcessorDelegate : public ActionProcessorDelegate {
  public:
-  void ProcessingDone(const ActionProcessor* processor) {
+  void ProcessingDone(const ActionProcessor* processor, bool success) {
     ASSERT_TRUE(loop_);
     g_main_loop_quit(loop_);
   }
   GMainLoop *loop_;
 };
 
 gboolean PassObjectOutTestStarter(gpointer data) {
   ActionProcessor *processor = reinterpret_cast<ActionProcessor*>(data);
   processor->StartProcessing();
   return FALSE;
@@ skipping 48 matching lines @@
   ActionProcessor processor;
   processor.EnqueueAction(&feeder_action);
   processor.EnqueueAction(&download_action);
   processor.StartProcessing();
   ASSERT_FALSE(processor.IsRunning());
 
   g_main_loop_unref(loop);
 }
 
 }  // namespace chromeos_update_engine