Update bower.json for Polymer elements and add PRESUBMIT.py

third_party/polymer/v1_0/components-chromium/neon-animation/neon-shared-element-animation-behavior-extracted.js

Index: third_party/polymer/v1_0/components-chromium/neon-animation/neon-shared-element-animation-behavior-extracted.js
diff --git a/third_party/polymer/v1_0/components-chromium/neon-animation/neon-shared-element-animation-behavior-extracted.js b/third_party/polymer/v1_0/components-chromium/neon-animation/neon-shared-element-animation-behavior-extracted.js
index e5cd7c9ef7f9ba1365ccf3178f6c27ecf7078a11..28f7617aaf822f63ce1fd4ff2e1c3e2514e4bd67 100644
--- a/third_party/polymer/v1_0/components-chromium/neon-animation/neon-shared-element-animation-behavior-extracted.js
+++ b/third_party/polymer/v1_0/components-chromium/neon-animation/neon-shared-element-animation-behavior-extracted.js
@@ -2,9 +2,9 @@
 
   /**
    * Use `Polymer.NeonSharedElementAnimationBehavior` to implement shared element animations.
-   * @polymerBehavior
+   * @polymerBehavior Polymer.NeonSharedElementAnimationBehavior
    */
-  Polymer.NeonSharedElementAnimationBehavior = [Polymer.NeonAnimationBehavior, {
+  Polymer.NeonSharedElementAnimationBehaviorImpl = {
 
     properties: {
 
@@ -48,5 +48,11 @@
       return this.sharedElements;
     }
 
-  }];
+  };
+
+  /** @polymerBehavior Polymer.NeonSharedElementAnimationBehavior */
+  Polymer.NeonSharedElementAnimationBehavior = [
+    Polymer.NeonAnimationBehavior,
+    Polymer.NeonSharedElementAnimationBehaviorImpl
+  ];