Install platform apps into a separate data directory

chrome/common/extensions/extension_file_util.h

Index: chrome/common/extensions/extension_file_util.h
diff --git a/chrome/common/extensions/extension_file_util.h b/chrome/common/extensions/extension_file_util.h
index c1241f17555c84f4980a9e06c3f0fcd77cc0d24c..467856ffbc792bd5492146755ea127a5199b2621 100644
--- a/chrome/common/extensions/extension_file_util.h
+++ b/chrome/common/extensions/extension_file_util.h
@@ -23,17 +23,24 @@ class DictionaryValue;
 // Utilties for manipulating the on-disk storage of extensions.
 namespace extension_file_util {
 
+enum DeleteSource {
+  DELETE_SOURCE_NO,
+  DELETE_SOURCE_YES,
+};
+
 // The name of the directory inside the profile that we store installed
 // extension in.
 extern const char kInstallDirectoryName[];
 
 // Copies |unpacked_source_dir| into the right location under |extensions_dir|.
+// Deletes the source directory if |should_delete_source| is true.
 // The destination directiory is returned on success, or empty path is returned
 // on failure.
 FilePath InstallExtension(const FilePath& unpacked_source_dir,
                           const std::string& id,
                           const std::string& version,
-                          const FilePath& extensions_dir);
+                          const FilePath& extensions_dir,
+                          DeleteSource should_delete_source);
 
 // Removes all versions of the extension with |id| from |extensions_dir|.
 void UninstallExtension(const FilePath& extensions_dir,