Add IPCs to check web copy/cut/paste for extensions with the appropriate permission bit.

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
diff --git a/chrome/common/extensions/extension.cc b/chrome/common/extensions/extension.cc
index fb96f92ec5837d61823648829ee6be9bfe31c801..7c2a7a6a44b3e14cd8d405ecc4e5205036564b62 100644
--- a/chrome/common/extensions/extension.cc
+++ b/chrome/common/extensions/extension.cc
@@ -203,6 +203,7 @@ const int Extension::kSidebarIconMaxSize = 16;
 const char Extension::kBackgroundPermission[] = "background";
 const char Extension::kContextMenusPermission[] = "contextMenus";
 const char Extension::kBookmarkPermission[] = "bookmarks";
+const char Extension::kClipboardPermission[] = "clipboard";
 const char Extension::kCookiePermission[] = "cookies";
 const char Extension::kExperimentalPermission[] = "experimental";
 const char Extension::kGeolocationPermission[] = "geolocation";
@@ -221,6 +222,7 @@ const char Extension::kWebstorePrivatePermission[] = "webstorePrivate";
 const Extension::Permission Extension::kPermissions[] = {
   { kBackgroundPermission, 0 },
   { kBookmarkPermission, IDS_EXTENSION_PROMPT_WARNING_BOOKMARKS },
+  { kClipboardPermission, 0 },  // TODO(dcheng): add a permission message.
   { kContextMenusPermission, 0 },
   { kCookiePermission, 0 },
   { kExperimentalPermission, 0 },