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

chrome/common/extensions/extension_manifest_constants.cc

Index: chrome/common/extensions/extension_manifest_constants.cc
diff --git a/chrome/common/extensions/extension_manifest_constants.cc b/chrome/common/extensions/extension_manifest_constants.cc
index dc4a0dbaea4df0f6ed2cffe66d6bb63e5b1c0811..79355ab9fe40c7fd80a782ca9ddec3d4549b1ac0 100644
--- a/chrome/common/extensions/extension_manifest_constants.cc
+++ b/chrome/common/extensions/extension_manifest_constants.cc
@@ -63,10 +63,6 @@ const char kLaunchContainer[] = "app.launch.container";
 const char kLaunchHeight[] = "app.launch.height";
 const char kLaunchLocalPath[] = "app.launch.local_path";
 const char kLaunchWebURL[] = "app.launch.web_url";
-const char kLaunchMaxHeight[] = "app.launch.max_height";
-const char kLaunchMaxWidth[] = "app.launch.max_width";
-const char kLaunchMinHeight[] = "app.launch.min_height";
-const char kLaunchMinWidth[] = "app.launch.min_width";
 const char kLaunchWidth[] = "app.launch.width";
 const char kLayouts[] = "layouts";
 const char kManifestVersion[] = "manifest_version";