Add versioning to PluginFinder metadata.

chrome/browser/web_resource/plugins_resource_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/web_resource/plugins_resource_service.h"
-
-#include "base/command_line.h"
-#include "chrome/browser/plugins/plugin_finder.h"
-#include "chrome/browser/prefs/pref_registry_simple.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/pref_names.h"
-#include "googleurl/src/gurl.h"
-
-namespace {
-
-// Delay on first fetch so we don't interfere with startup.
-const int kStartResourceFetchDelayMs = 60 * 1000;
-
-// Delay between calls to update the cache 1 day and 2 minutes in testing mode.
-const int kCacheUpdateDelayMs = 24 * 60 * 60 * 1000;
-const int kTestCacheUpdateDelayMs = 2 * 60 * 1000;
-
-const char kPluginsServerUrl[] =
-    "https://www.gstatic.com/chrome/config/plugins_2/";
-
-bool IsTest() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kPluginsMetadataServerURL);
-}
-
-GURL GetPluginsServerURL() {
-  std::string filename;
-#if defined(OS_WIN)
-  filename = "plugins_win.json";
-#elif defined(OS_LINUX)
-  filename = "plugins_linux.json";
-#elif defined(OS_MACOSX)
-  filename = "plugins_mac.json";
-#else
-  NOTREACHED();
-#endif
-
-  std::string test_url =
-      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kPluginsMetadataServerURL);
-  return GURL(IsTest() ? test_url : kPluginsServerUrl + filename);
-}
-
-int GetCacheUpdateDelay() {
-  return IsTest() ? kTestCacheUpdateDelayMs : kCacheUpdateDelayMs;
-}
-
-}  // namespace
-
-PluginsResourceService::PluginsResourceService(PrefService* local_state)
-    : WebResourceService(local_state,
-                         GetPluginsServerURL(),
-                         false,
-                         prefs::kPluginsResourceCacheUpdate,
-                         kStartResourceFetchDelayMs,
-                         GetCacheUpdateDelay()) {
-}
-
-PluginsResourceService::~PluginsResourceService() {
-}
-
-// static
-void PluginsResourceService::RegisterPrefs(PrefRegistrySimple* registry) {
-  registry->RegisterDictionaryPref(prefs::kPluginsMetadata,
-                                   new base::DictionaryValue());
-  registry->RegisterStringPref(prefs::kPluginsResourceCacheUpdate, "0");
-}
-
-void PluginsResourceService::Unpack(const DictionaryValue& parsed_json) {
-  prefs_->Set(prefs::kPluginsMetadata, parsed_json);
-  PluginFinder::GetInstance()->ReinitializePlugins(parsed_json);
-}