Move the parsing of app.launch related keys out of Extension class.

chrome/common/extensions/extension_manifest_constants.h

Index: chrome/common/extensions/extension_manifest_constants.h
diff --git a/chrome/common/extensions/extension_manifest_constants.h b/chrome/common/extensions/extension_manifest_constants.h
index e21abdb860e436a739ac639589339433d981cd16..c68ddce3f69fd71a4b2c5055b3ab01be129456a6 100644
--- a/chrome/common/extensions/extension_manifest_constants.h
+++ b/chrome/common/extensions/extension_manifest_constants.h
@@ -67,10 +67,6 @@ namespace extension_manifest_keys {
   extern const char kLaunchContainer[];
   extern const char kLaunchHeight[];
   extern const char kLaunchLocalPath[];
-  extern const char kLaunchMaxHeight[];
-  extern const char kLaunchMaxWidth[];
-  extern const char kLaunchMinHeight[];
-  extern const char kLaunchMinWidth[];
   extern const char kLaunchWebURL[];
   extern const char kLaunchWidth[];
   extern const char kLayouts[];