DevTools: Add color swatches to Sources panel

third_party/WebKit/Source/devtools/front_end/externs.js

Index: third_party/WebKit/Source/devtools/front_end/externs.js
diff --git a/third_party/WebKit/Source/devtools/front_end/externs.js b/third_party/WebKit/Source/devtools/front_end/externs.js
index 870da2b065015b0ad172bf4e937d31d14f1a8fb1..3efe70a0ba9295fda169c6b0924e64df5f13517b 100644
--- a/third_party/WebKit/Source/devtools/front_end/externs.js
+++ b/third_party/WebKit/Source/devtools/front_end/externs.js
@@ -585,6 +585,12 @@ CodeMirror.StringStream.prototype = {
     sol: function() { }
 }
 
+/** @constructor */
+CodeMirror.TextMarker = function(doc, type) { }
+CodeMirror.TextMarker.prototype = {
+    clear: function() { }
+}
+
 /** @type {Object.<string, !Object.<string, string>>} */
 CodeMirror.keyMap;