Add "sidebar" section to extension manifest:...

chrome/common/extensions/extension_constants.cc

Index: chrome/common/extensions/extension_constants.cc
===================================================================
--- chrome/common/extensions/extension_constants.cc	(revision 71703)
+++ chrome/common/extensions/extension_constants.cc	(working copy)
@@ -52,6 +52,10 @@
 const char* kPluginsPublic = "public";
 const char* kPublicKey = "key";
 const char* kRunAt = "run_at";
+const char* kSidebar = "sidebar";
+const char* kSidebarDefaultIcon = "default_icon";
+const char* kSidebarDefaultTitle = "default_title";
+const char* kSidebarDefaultUrl = "default_url";
 const char* kSignature = "signature";
 const char* kTheme = "theme";
 const char* kThemeColors = "colors";
@@ -225,6 +229,14 @@
     "Invalid value for 'plugins[*].public'.";
 const char* kInvalidRunAt =
     "Invalid value for 'content_scripts[*].run_at'.";
+extern const char* kInvalidSidebar =
+    "Invalid value for 'sidebar'.";
+extern const char* kInvalidSidebarDefaultIconPath =
+    "Invalid value for 'sidebar.default_icon'.";
+extern const char* kInvalidSidebarDefaultTitle =
+    "Invalid value for 'sidebar.default_title'.";
+extern const char* kInvalidSidebarDefaultUrl =
+    "Invalid value for 'sidebar.default_url'.";
 const char* kInvalidSignature =
     "Value 'signature' is missing or invalid.";
 const char* kInvalidTheme =
@@ -288,6 +300,9 @@
     "Only one of 'browser_action', 'page_action', and 'app' can be specified.";
 const char* kReservedMessageFound =
     "Reserved key * found in message catalog.";
+const char* kSidebarExperimental =
+    "You must request the 'experimental' permission in order to use the"
+    " Sidebar API.";
 const char* kThemesCannotContainExtensions =
     "A theme cannot contain extensions code.";
 #if defined(OS_CHROMEOS)