Register system Pepper Flash plugin if no packaged Pepper plugin is found.

chrome/common/chrome_paths.h

Index: chrome/common/chrome_paths.h
diff --git a/chrome/common/chrome_paths.h b/chrome/common/chrome_paths.h
index a22600edd8386553c0d4b9d4c93472341093e6e2..ee0b37231c6d0e8190f1e2f8166094823162b5ca 100644
--- a/chrome/common/chrome_paths.h
+++ b/chrome/common/chrome_paths.h
@@ -68,8 +68,9 @@ enum {
   DIR_COMPONENT_UPDATED_PEPPER_FLASH_PLUGIN,  // Base directory of the Pepper
                                               // Flash plugins downloaded by the
                                               // component updater.
-  DIR_PEPPER_FLASH_DEBUGGER_PLUGIN,  // Base directory of the debugging version
-                                     // of the Pepper Flash plugin.
+  DIR_PEPPER_FLASH_SYSTEM_PLUGIN,  // Base directory of the system version of
+                                   // the Pepper Flash plugin, downloadable
+                                   // from Adobe website.
   FILE_RESOURCE_MODULE,         // Full path and filename of the module that
                                 // contains embedded resources (version,
                                 // strings, images, etc.).