Move page action manifest parsing out of Extension; the first multi-key manifest handler.

chrome/utility/chrome_content_utility_client.cc

Index: chrome/utility/chrome_content_utility_client.cc
diff --git a/chrome/utility/chrome_content_utility_client.cc b/chrome/utility/chrome_content_utility_client.cc
index d90cf1402248a42c5842c7e4e31ee1629093fdaa..c3b4fea2e74d295afdfeeb8099b61536ced9e526 100644
--- a/chrome/utility/chrome_content_utility_client.cc
+++ b/chrome/utility/chrome_content_utility_client.cc
@@ -18,6 +18,7 @@
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_utility_messages.h"
 #include "chrome/common/extensions/api/extension_action/browser_action_handler.h"
+#include "chrome/common/extensions/api/extension_action/page_action_handler.h"
 #include "chrome/common/extensions/api/i18n/default_locale_handler.h"
 #include "chrome/common/extensions/api/themes/theme_handler.h"
 #include "chrome/common/extensions/extension.h"
@@ -58,6 +59,12 @@ void RegisterExtensionManifestHandlers() {
   extensions::ManifestHandler::Register(
       extension_manifest_keys::kDefaultLocale,
       make_linked_ptr(new extensions::DefaultLocaleHandler));
+  linked_ptr<extensions::PageActionHandler> page_action_handler(
+      new extensions::PageActionHandler);
+  extensions::ManifestHandler::Register(
+      extension_manifest_keys::kPageAction, page_action_handler);
+  extensions::ManifestHandler::Register(
+      extension_manifest_keys::kPageActions, page_action_handler);
   extensions::ManifestHandler::Register(
       extension_manifest_keys::kTheme,
       make_linked_ptr(new extensions::ThemeHandler));