Implement viewporting for the out of process PDF plugin.

chrome/browser/resources/pdf/index.js

 // Copyright (c) 2012 The Polymer Authors. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
@@ skipping 369 matching lines @@
           var i = Array.prototype.indexOf.call(nodes, target);
           if (i >= 0) {
             return i;
           }
           target = target.parentNode;
         }
       }
     });
   ;
 
-    Polymer('viewer-toolbar', {
-      fadingIn: false,
-      timerId: undefined,
-      ready: function() {
-        this.fadingInChanged();
-      },
-      fadeIn: function() {
-        this.fadingIn = true;
-      },
-      fadeOut: function() {
-        this.fadingIn = false;
-      },
-      fadingInChanged: function() {
-        if (this.fadingIn) {
-          this.style.opacity = 1;
-          if (this.timerId !== undefined) {
-            clearTimeout(this.timerId);
-            this.timerId = undefined;
-          }
-        } else {
-          if (this.timerId === undefined) {
-            this.timerId = setTimeout(
-              function() {
-                this.style.opacity = 0;
-                this.timerId = undefined;
-              }.bind(this), 3000);
-          }
+  Polymer('viewer-toolbar', {
+    fadingIn: false,
+    timerId: undefined,
+    ready: function() {
+      this.fadingInChanged();
+    },
+    fadeIn: function() {
+      this.fadingIn = true;
+    },
+    fadeOut: function() {
+      this.fadingIn = false;
+    },
+    fadingInChanged: function() {
+      if (this.fadingIn) {
+        this.style.opacity = 1;
+        if (this.timerId !== undefined) {
+          clearTimeout(this.timerId);
+          this.timerId = undefined;
+        }
+      } else {
+        if (this.timerId === undefined) {
+          this.timerId = setTimeout(
+            function() {
+              this.style.opacity = 0;
+              this.timerId = undefined;
+            }.bind(this), 3000);
         }
       }
-    });
-  ;
+    }
+  });
+;
 
-    (function() {
+  (function() {
     var dpi = '';
 
     Polymer('viewer-button', {
       src: '',
       latchable: false,
       ready: function() {
         if (!dpi) {
           var mql = window.matchMedia('(-webkit-min-device-pixel-ratio: 1.3');
           dpi = mql.matches ? 'hi' : 'low';
         }
       },
       srcChanged: function() {
         if (this.src) {
           this.$.icon.style.backgroundImage =
               'url(' + this.getAttribute('assetpath') + 'img/' + dpi +
-                  'DPI/' + this.src + ')';
+              'DPI/' + this.src + ')';
         } else {
           this.$.icon.style.backgroundImage = '';
         }
       },
       latchableChanged: function() {
         if (this.latchable)
           this.classList.add('latchable');
         else
           this.classList.remove('latchable');
       },
     });
-    })();
-  
+  })();