Merge from Chromium at DEPS revision r213780

This commit was generated by merge_to_master.py.

Change-Id: I702915ad75bd2cc5201b0239db771978b0a8137d
diff --git a/Source/core/css/CSSMediaRule.idl b/Source/core/css/CSSMediaRule.idl
index b1ea13a..71185a7 100644
--- a/Source/core/css/CSSMediaRule.idl
+++ b/Source/core/css/CSSMediaRule.idl
@@ -22,8 +22,8 @@
 interface CSSMediaRule : CSSRule {
     readonly attribute MediaList media;
     readonly attribute CSSRuleList cssRules;
-    
-     [RaisesException] unsigned long      insertRule([Default=Undefined] optional DOMString rule, 
+
+     [RaisesException] unsigned long      insertRule([Default=Undefined] optional DOMString rule,
                                                  [Default=Undefined] optional unsigned long index);
     [RaisesException] void               deleteRule([Default=Undefined] optional unsigned long index);
 };