Extensions: Split extensions utility IPC messages into its own file.

chrome/browser/extensions/extension_service.cc

 // Copyright (c) 2013 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/extensions/extension_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <set>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
 #include "chrome/browser/extensions/component_loader.h"
-#include "chrome/browser/extensions/crx_installer.h"
 #include "chrome/browser/extensions/data_deleter.h"
 #include "chrome/browser/extensions/extension_assets_manager.h"
 #include "chrome/browser/extensions/extension_disabled_ui.h"
 #include "chrome/browser/extensions/extension_error_controller.h"
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "chrome/browser/extensions/extension_special_storage_policy.h"
 #include "chrome/browser/extensions/extension_sync_service.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/extensions/external_install_manager.h"
 #include "chrome/browser/extensions/external_provider_impl.h"
 #include "chrome/browser/extensions/install_verifier.h"
 #include "chrome/browser/extensions/installed_loader.h"
 #include "chrome/browser/extensions/pending_extension_manager.h"
 #include "chrome/browser/extensions/permissions_updater.h"
 #include "chrome/browser/extensions/shared_module_service.h"
 #include "chrome/browser/extensions/unpacked_installer.h"
 #include "chrome/browser/extensions/updater/extension_cache.h"
-#include "chrome/browser/extensions/updater/extension_updater.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
 #include "chrome/browser/ui/webui/favicon_source.h"
 #include "chrome/browser/ui/webui/ntp/thumbnail_source.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/features/feature_channel.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
@@ skipping 21 matching lines @@
 #include "extensions/common/one_shot_event.h"
 #include "extensions/common/permissions/permission_message_provider.h"
 #include "extensions/common/permissions/permissions_data.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/extensions/install_limiter.h"
 #include "webkit/browser/fileapi/file_system_backend.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 #endif
 
+// TODO(thestig): Eventually remove the #ifdefs when ExtensionService is no
+// longer used on mobile.
+#if defined(ENABLE_EXTENSIONS)
+#include "chrome/browser/extensions/crx_installer.h"
+#include "chrome/browser/extensions/updater/extension_updater.h"
+#endif
+
 using content::BrowserContext;
 using content::BrowserThread;
 using content::DevToolsAgentHost;
 using extensions::CrxInstaller;
 using extensions::Extension;
 using extensions::ExtensionIdSet;
 using extensions::ExtensionInfo;
 using extensions::ExtensionRegistry;
 using extensions::ExtensionSet;
 using extensions::FeatureSwitch;
@@ skipping 14 matching lines @@
 // Histogram values for logging events related to externally installed
 // extensions.
 enum ExternalExtensionEvent {
   EXTERNAL_EXTENSION_INSTALLED = 0,
   EXTERNAL_EXTENSION_IGNORED,
   EXTERNAL_EXTENSION_REENABLED,
   EXTERNAL_EXTENSION_UNINSTALLED,
   EXTERNAL_EXTENSION_BUCKET_BOUNDARY,
 };
 
+#if defined(ENABLE_EXTENSIONS)
 // Prompt the user this many times before considering an extension acknowledged.
-static const int kMaxExtensionAcknowledgePromptCount = 3;
+const int kMaxExtensionAcknowledgePromptCount = 3;
+#endif
 
 // Wait this many seconds after an extensions becomes idle before updating it.
-static const int kUpdateIdleDelay = 5;
+const int kUpdateIdleDelay = 5;
 
-static bool IsCWSSharedModule(const Extension* extension) {
+bool IsCWSSharedModule(const Extension* extension) {
   return extension->from_webstore() &&
          SharedModuleInfo::IsSharedModule(extension);
 }
 
 class SharedModuleProvider : public extensions::ManagementPolicy::Provider {
  public:
   SharedModuleProvider() {}
   virtual ~SharedModuleProvider() {}
 
   virtual std::string GetDebugPolicyProviderName() const OVERRIDE {
@@ skipping 180 matching lines @@
   pref_change_registrar_.Init(profile->GetPrefs());
   base::Closure callback =
       base::Bind(&ExtensionService::OnExtensionInstallPrefChanged,
                  base::Unretained(this));
   pref_change_registrar_.Add(extensions::pref_names::kInstallAllowList,
                              callback);
   pref_change_registrar_.Add(extensions::pref_names::kInstallDenyList,
                              callback);
   pref_change_registrar_.Add(extensions::pref_names::kAllowedTypes, callback);
 
+#if defined(ENABLE_EXTENSIONS)
   // Set up the ExtensionUpdater
   if (autoupdate_enabled) {
     int update_frequency = extensions::kDefaultUpdateFrequencySeconds;
     if (command_line->HasSwitch(switches::kExtensionsUpdateFrequency)) {
       base::StringToInt(command_line->GetSwitchValueASCII(
           switches::kExtensionsUpdateFrequency),
           &update_frequency);
     }
     updater_.reset(new extensions::ExtensionUpdater(
         this,
         extension_prefs,
         profile->GetPrefs(),
         profile,
         update_frequency,
         extensions::ExtensionCache::GetInstance()));
   }
+#endif
 
   component_loader_.reset(
       new extensions::ComponentLoader(this,
                                       profile->GetPrefs(),
                                       g_browser_process->local_state(),
                                       profile));
 
   if (extensions_enabled_) {
     extensions::ExternalProviderImpl::CreateExternalProviders(
         this, profile_, &external_extension_providers_);
@@ skipping 151 matching lines @@
         state == extensions::BLACKLISTED_CWS_POLICY_VIOLATION)
       greylist_.Insert(*it);
   }
 }
 
 bool ExtensionService::UpdateExtension(const std::string& id,
                                        const base::FilePath& extension_path,
                                        bool file_ownership_passed,
                                        CrxInstaller** out_crx_installer) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+#if defined(ENABLE_EXTENSIONS)
   if (browser_terminating_) {
     LOG(WARNING) << "Skipping UpdateExtension due to browser shutdown";
     // Leak the temp file at extension_path. We don't want to add to the disk
     // I/O burden at shutdown, we can't rely on the I/O completing anyway, and
     // the file is in the OS temp directory which should be cleaned up for us.
     return false;
   }
 
   const extensions::PendingExtensionInfo* pending_extension_info =
       pending_extension_manager()->GetById(id);
@@ skipping 68 matching lines @@
   installer->set_creation_flags(creation_flags);
 
   installer->set_delete_source(file_ownership_passed);
   installer->set_install_cause(extension_misc::INSTALL_CAUSE_UPDATE);
   installer->InstallCrx(extension_path);
 
   if (out_crx_installer)
     *out_crx_installer = installer.get();
 
   return true;
+#else
+  return false;
+#endif
 }
 
 void ExtensionService::ReloadExtension(
     // "transient" because the process of reloading may cause the reference
     // to become invalid. Instead, use |extension_id|, a copy.
     const std::string& transient_extension_id) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // If the extension is already reloading, don't reload again.
   if (extension_prefs_->GetDisableReasons(transient_extension_id) &
@@ skipping 561 matching lines @@
 
   for (size_t i = 0; i < to_unload.size(); ++i)
     UnloadExtension(to_unload[i], UnloadedExtensionInfo::REASON_DISABLE);
 
   for (std::map<std::string, Extension::DisableReason>::const_iterator i =
            to_disable.begin(); i != to_disable.end(); ++i)
     DisableExtension(i->first, i->second);
 }
 
 void ExtensionService::CheckForUpdatesSoon() {
+#if defined(ENABLE_EXTENSIONS)
   // This can legitimately happen in unit tests.
   if (!updater_.get())
     return;
 
   if (AreAllExternalProvidersReady()) {
     updater_->CheckSoon();
   } else {
     // Sync can start updating before all the external providers are ready
     // during startup. Start the update as soon as those providers are ready,
     // but not before.
     update_once_all_providers_are_ready_ = true;
   }
+#endif
 }
 
 // Some extensions will autoupdate themselves externally from Chrome.  These
 // are typically part of some larger client application package.  To support
 // these, the extension will register its location in the the preferences file
 // (and also, on Windows, in the registry) and this code will periodically
 // check that location for a .crx file, which it will then install locally if
 // a new version is available.
 // Errors are reported through ExtensionErrorReporter. Succcess is not
 // reported.
@@ skipping 37 matching lines @@
   for (i = external_extension_providers_.begin();
        i != external_extension_providers_.end(); ++i) {
     if (!i->get()->IsReady())
       return false;
   }
   return true;
 }
 
 void ExtensionService::OnAllExternalProvidersReady() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+#if defined(ENABLE_EXTENSIONS)
   base::TimeDelta elapsed = base::Time::Now() - profile_->GetStartTime();
   UMA_HISTOGRAM_TIMES("Extension.ExternalProvidersReadyAfter", elapsed);
 
   // Install any pending extensions.
   if (update_once_all_providers_are_ready_ && updater()) {
     update_once_all_providers_are_ready_ = false;
     extensions::ExtensionUpdater::CheckParams params;
     params.callback = external_updates_finished_callback_;
     updater()->CheckNow(params);
   }
 
   // Uninstall all the unclaimed extensions.
   scoped_ptr<extensions::ExtensionPrefs::ExtensionsInfo> extensions_info(
       extension_prefs_->GetInstalledExtensionsInfo());
   for (size_t i = 0; i < extensions_info->size(); ++i) {
     ExtensionInfo* info = extensions_info->at(i).get();
     if (Manifest::IsExternalLocation(info->extension_location))
       CheckExternalUninstall(info->extension_id);
   }
 
   error_controller_->ShowErrorIfNeeded();
 
   UpdateExternalExtensionAlert();
+#endif
 }
 
 void ExtensionService::AcknowledgeExternalExtension(const std::string& id) {
   extension_prefs_->AcknowledgeExternalExtension(id);
   UpdateExternalExtensionAlert();
 }
 
 bool ExtensionService::IsUnacknowledgedExternalExtension(
     const Extension* extension) {
   if (!FeatureSwitch::prompt_for_external_extensions()->IsEnabled())
     return false;
 
   return (Manifest::IsExternalLocation(extension->location()) &&
           !extension_prefs_->IsExternalExtensionAcknowledged(extension->id()) &&
           !(extension_prefs_->GetDisableReasons(extension->id()) &
                 Extension::DISABLE_SIDELOAD_WIPEOUT));
 }
 
 void ExtensionService::UpdateExternalExtensionAlert() {
+#if defined(ENABLE_EXTENSIONS)
   if (!FeatureSwitch::prompt_for_external_extensions()->IsEnabled())
     return;
 
   const Extension* extension = NULL;
   const ExtensionSet& disabled_extensions = registry_->disabled_extensions();
   for (ExtensionSet::const_iterator iter = disabled_extensions.begin();
        iter != disabled_extensions.end(); ++iter) {
     const Extension* e = iter->get();
     if (IsUnacknowledgedExternalExtension(e)) {
       extension = e;
@@ skipping 27 matching lines @@
       }
       if (is_first_run_)
         extension_prefs_->SetExternalInstallFirstRun(extension->id());
       // first_run is true if the extension was installed during a first run
       // (even if it's post-first run now).
       bool first_run = extension_prefs_->IsExternalInstallFirstRun(
           extension->id());
       external_install_manager_->AddExternalInstallError(extension, first_run);
     }
   }
+#endif  // defined(ENABLE_EXTENSIONS)
 }
 
 void ExtensionService::UnloadExtension(
     const std::string& extension_id,
     UnloadedExtensionInfo::Reason reason) {
   // Make sure the extension gets deleted after we return from this function.
   int include_mask =
       ExtensionRegistry::EVERYTHING & ~ExtensionRegistry::TERMINATED;
   scoped_refptr<const Extension> extension(
       registry_->GetExtensionById(extension_id, include_mask));
@@ skipping 64 matching lines @@
 
 void ExtensionService::SetReadyAndNotifyListeners() {
   ready_->Signal();
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSIONS_READY,
       content::Source<Profile>(profile_),
       content::NotificationService::NoDetails());
 }
 
 void ExtensionService::OnLoadedInstalledExtensions() {
+#if defined(ENABLE_EXTENSIONS)
   if (updater_)
     updater_->Start();
 
   OnBlacklistUpdated();
+#endif
 }
 
 void ExtensionService::AddExtension(const Extension* extension) {
   // TODO(jstritar): We may be able to get rid of this branch by overriding the
   // default extension state to DISABLED when the --disable-extensions flag
   // is set (http://crbug.com/29067).
   if (!extensions_enabled() &&
       !extension->is_theme() &&
       extension->location() != Manifest::COMPONENT &&
       !Manifest::IsExternalLocation(extension->location())) {
@@ skipping 589 matching lines @@
 }
 
 bool ExtensionService::OnExternalExtensionFileFound(
          const std::string& id,
          const Version* version,
          const base::FilePath& path,
          Manifest::Location location,
          int creation_flags,
          bool mark_acknowledged) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+#if defined(ENABLE_EXTENSIONS)
   CHECK(Extension::IdIsValid(id));
   if (extension_prefs_->IsExternalExtensionUninstalled(id))
     return false;
 
   // Before even bothering to unpack, check and see if we already have this
   // version. This is important because these extensions are going to get
   // installed on every startup.
   const Extension* existing = GetExtensionById(id, true);
 
   if (existing) {
@@ skipping 43 matching lines @@
   installer->InstallCrx(path);
 #endif
 
   // Depending on the source, a new external extension might not need a user
   // notification on installation. For such extensions, mark them acknowledged
   // now to suppress the notification.
   if (mark_acknowledged)
     AcknowledgeExternalExtension(id);
 
   return true;
+#else
+  return false;
+#endif  // defined(ENABLE_EXTENSIONS)
 }
 
 void ExtensionService::DidCreateRenderViewForBackgroundPage(
     extensions::ExtensionHost* host) {
   OrphanedDevTools::iterator iter =
       orphaned_dev_tools_.find(host->extension_id());
   if (iter == orphaned_dev_tools_.end())
     return;
 
   iter->second->ConnectRenderViewHost(host->render_view_host());
@@ skipping 348 matching lines @@
 }
 
 void ExtensionService::OnProfileDestructionStarted() {
   ExtensionIdSet ids_to_unload = registry_->enabled_extensions().GetIDs();
   for (ExtensionIdSet::iterator it = ids_to_unload.begin();
        it != ids_to_unload.end();
        ++it) {
     UnloadExtension(*it, UnloadedExtensionInfo::REASON_PROFILE_SHUTDOWN);
   }
 }