[DevTools] make breakpoints better

third_party/WebKit/Source/devtools/front_end/common/TextRange.js

Index: third_party/WebKit/Source/devtools/front_end/common/TextRange.js
diff --git a/third_party/WebKit/Source/devtools/front_end/common/TextRange.js b/third_party/WebKit/Source/devtools/front_end/common/TextRange.js
index 3dcb0baec18a28888164beaf80afeb6a6baaa017..bb99e8129092874e4598d1aedaebc7a40027d04f 100644
--- a/third_party/WebKit/Source/devtools/front_end/common/TextRange.js
+++ b/third_party/WebKit/Source/devtools/front_end/common/TextRange.js
@@ -55,6 +55,14 @@ WebInspector.TextRange = class {
   }
 
   /**
+   * @param {number} line
+   * @return {!WebInspector.TextRange}
+   */
+  static createFromLine(line) {
+    return new WebInspector.TextRange(line, 0, line + 1, 0);
+  }
+
+  /**
    * @param {!Object} serializedTextRange
    * @return {!WebInspector.TextRange}
    */