Make all the polymer elements CSP compliant.

elements/viewer-toolbar/viewer-toolbar.html

 <polymer-element name="viewer-toolbar" attributes="fadingIn">
 <template>
   <link rel="stylesheet" href="viewer-toolbar.css">
   <div id="toolbar">
     <content></content>
   </div>
 </template>
-<script>
-  Polymer('viewer-toolbar', {
-    fadingIn: false,
-    timerId_: undefined,
-    inInitialFadeIn_: false,
-    ready: function() {
-      this.mousemoveCallback = function(e) {
-        var rect = this.getBoundingClientRect();
-        if (e.clientX >= rect.left && e.clientX <= rect.right &&
-            e.clientY >= rect.top && e.clientY <= rect.bottom) {
-          this.fadingIn = true;
-          // If we hover over the toolbar, cancel the initial fade in.
-          if (this.inInitialFadeIn_)
-            this.inInitialFadeIn_ = false;
-        } else {
-          // Initially we want to keep the toolbar up for a longer period.
-          if (!this.inInitialFadeIn_)
-            this.fadingIn = false;
-        }
-      }.bind(this);
-    },
-    attached: function() {
-      this.parentNode.addEventListener('mousemove', this.mousemoveCallback);
-    },
-    detached: function() {
-      this.parentNode.removeEventListener('mousemove', this.mousemoveCallback);
-    },
-    initialFadeIn: function() {
-      this.inInitialFadeIn_ = true;
-      this.fadeIn();
-      this.fadeOutAfterDelay(6000);
-    },
-    fadingInChanged: function() {
-      if (this.fadingIn) {
-        this.fadeIn();
-      } else {
-        if (this.timerId_ === undefined)
-          this.fadeOutAfterDelay(3000);
-      }
-    },
-    fadeIn: function() {
-      this.style.opacity = 1;
-      clearTimeout(this.timerId_);
-      this.timerId_ = undefined;
-    },
-    fadeOutAfterDelay: function(delay) {
-      this.timerId_ = setTimeout(
-        function() {
-          this.style.opacity = 0;
-          this.timerId_ = undefined;
-          this.inInitialFadeIn_ = false;
-        }.bind(this), delay);
-    }
-  });
-</script>
+<script src="viewer-toolbar.js"></script>
 </polymer-element>