Component update (part 6), wire sigleton to browser

chrome/browser/component_updater/component_updater_configurator.cc

+// Copyright (c) 2011 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/component_updater/component_updater_service.h"
+
+#include <algorithm>
+#include <string>
+#include <vector>
+
+#include "base/command_line.h"
+#include "base/compiler_specific.h"
+#include "base/string_util.h"
+#include "chrome/common/chrome_switches.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace {
+// Default time constants.
+const int kDelayOneMinute = 60;
+const int kDelayOneHour = kDelayOneMinute * 60;
+
+// Debug values you can pass to --component-updater-debug=<value>.
+const char kDebugFastUpdate[] = "fast-update";
+const char kDebugOutOfProcess[] = "out-of-process";
+
+bool HasDebugValue(const std::vector<std::string>& vec, const char* test) {
+  if (vec.empty())
+    return 0;
+  return (std::find(vec.begin(), vec.end(), test) != vec.end());
+}
+
+}  // namespace
+
+class ChromeConfigurator : public ComponentUpdateService::Configurator {
+ public:
+  ChromeConfigurator(const CommandLine* cmdline,
+                     net::URLRequestContextGetter* url_request_getter);
+
+  virtual ~ChromeConfigurator() {}
+
+  virtual int InitialDelay() OVERRIDE;
+  virtual int NextCheckDelay() OVERRIDE;
+  virtual int StepDelay() OVERRIDE;
+  virtual int MinimumReCheckWait() OVERRIDE;
+  virtual GURL UpdateUrl() OVERRIDE;
+  virtual size_t UrlSizeLimit() OVERRIDE;
+  virtual net::URLRequestContextGetter* RequestContext() OVERRIDE;
+  virtual bool InProcess() OVERRIDE;
+
+ private:
+  net::URLRequestContextGetter* url_request_getter_;
+  bool fast_update_;
+  bool out_of_process_;
+};
+
+ChromeConfigurator::ChromeConfigurator(const CommandLine* cmdline,
+    net::URLRequestContextGetter* url_request_getter)
+      : url_request_getter_(url_request_getter) {
+  // Parse comma-delimited debug flags.
+  std::vector<std::string> debug_values;
+  Tokenize(cmdline->GetSwitchValueASCII(switches::kComponentUpdaterDebug),
+      ",", &debug_values);
+  fast_update_ = HasDebugValue(debug_values, kDebugFastUpdate);
+  out_of_process_ = HasDebugValue(debug_values, kDebugOutOfProcess);
+}
+
+int ChromeConfigurator::InitialDelay() {
+  return  fast_update_ ? 1 : (6 * kDelayOneMinute);
+}
+
+int ChromeConfigurator::NextCheckDelay() {
+  return fast_update_ ? 3 : (4 * kDelayOneHour);
+}
+
+int ChromeConfigurator::StepDelay() {
+  return fast_update_ ? 1 : 4;
+}
+
+int ChromeConfigurator::MinimumReCheckWait() {
+  return fast_update_ ? 30 : (6 * kDelayOneHour);
+}
+
+GURL ChromeConfigurator::UpdateUrl() {
+  return GURL("http://clients2.google.com/service/update2/crx");
+}
+
+size_t ChromeConfigurator::UrlSizeLimit() {
+  return 1024ul;
+}
+
+net::URLRequestContextGetter* ChromeConfigurator::RequestContext() {
+  return url_request_getter_;
+}
+
+bool ChromeConfigurator::InProcess() {
+  return out_of_process_;
+}
+
+ComponentUpdateService::Configurator* MakeChromeComponentUpdaterConfigurator(
+    const CommandLine* cmdline, net::URLRequestContextGetter* context_getter) {
+  return new ChromeConfigurator(cmdline, context_getter);
+}
+