Add KeepaliveImpulse to extension process manager.

extensions/common/switches.cc

 // Copyright 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 "extensions/common/switches.h"
 
 namespace extensions {
 
 namespace switches {
 
@@ skipping 16 matching lines @@
 const char kEasyOffStoreExtensionInstall[] = "easy-off-store-extension-install";
 
 // Enables extension APIs that are in development.
 const char kEnableExperimentalExtensionApis[] =
     "enable-experimental-extension-apis";
 
 // Allows the ErrorConsole to collect runtime and manifest errors, and display
 // them in the chrome:extensions page.
 const char kErrorConsole[] = "error-console";
 
-// The time in seconds that an extension event page can be idle before it
+// The time in milliseconds that an extension event page can be idle before it

[scheib, 2013/12/02 21:22:38]

Done.

 // is shut down.
 const char kEventPageIdleTime[]             = "event-page-idle-time";
 
-// The time in seconds that an extension event page has between being notified
-// of its impending unload and that unload happening.
+// The time in milliseconds that an extension event page has between being
+// notified of its impending unload and that unload happening.
 const char kEventPageSuspendingTime[]       = "event-page-unloading-time";
 
 // Enables extensions running scripts on chrome:// URLs.
 // Extensions still need to explicitly request access to chrome:// URLs in the
 // manifest.
 const char kExtensionsOnChromeURLs[] = "extensions-on-chrome-urls";
 
 // Enables setting global commands through the Extensions Commands API.
 const char kGlobalCommands[] = "global-commands";
 
 // Should we prompt the user before allowing external extensions to install?
 // Default is yes.
 const char kPromptForExternalExtensions[] = "prompt-for-external-extensions";
 
 // Enables or disables extension scripts badges in the location bar.
 const char kScriptBadges[] = "script-badges";
 
 // Enable or diable the "script bubble" icon in the URL bar that tells you how
 // many extensions are running scripts on a page.
 const char kScriptBubble[] = "script-bubble";
 
 // Makes component extensions appear in chrome://settings/extensions.
 const char kShowComponentExtensionOptions[] =
     "show-component-extension-options";
 
 }  // namespace switches
 
 }  // namespace extensions