Fix chart legends.

tracing/tracing/ui/analysis/analysis_link.html

Index: tracing/tracing/ui/analysis/analysis_link.html
diff --git a/tracing/tracing/ui/analysis/analysis_link.html b/tracing/tracing/ui/analysis/analysis_link.html
index 3619e4a9b40cad44aff54ae6d92291ff75adb185..b34c25b4d091fd1a1bd37399c5f270e512d36480 100644
--- a/tracing/tracing/ui/analysis/analysis_link.html
+++ b/tracing/tracing/ui/analysis/analysis_link.html
@@ -23,8 +23,10 @@ found in the LICENSE file.
       cursor: pointer;
     }
     </style>
+
     <content></content>
   </template>
+
   <script>
   'use strict';
   Polymer({
@@ -45,6 +47,10 @@ found in the LICENSE file.
       this.controller_ = undefined;
     },
 
+    set color(c) {
+      this.style.color = c;
+    },
+
     /**
      * @return {*|function():*}
      */