Plugin Power Saver: Replace all "plug-in" with "plugin" for consistency.

content/public/common/webplugininfo.h

Index: content/public/common/webplugininfo.h
diff --git a/content/public/common/webplugininfo.h b/content/public/common/webplugininfo.h
index 2912cefb3319ad084ea56fdaeb95eaded50a41af..c84b92427d8ce44ae0ccc4bcf073668b7e99f384 100644
--- a/content/public/common/webplugininfo.h
+++ b/content/public/common/webplugininfo.h
@@ -68,7 +68,7 @@ struct CONTENT_EXPORT WebPluginInfo {
           (type == PLUGIN_TYPE_PEPPER_UNSANDBOXED));
   }
 
-  // Parse a version string as used by a plug-in. This method is more lenient
+  // Parse a version string as used by a plugin. This method is more lenient
   // in accepting weird version strings than base::Version::GetFromString()
   static void CreateVersionFromString(const base::string16& version_string,
                                       base::Version* parsed_version);