PDF Plugin: Add compile targets for a few more files.

chrome/browser/resources/pdf/elements/viewer-password-screen/viewer-password-screen.js

Index: chrome/browser/resources/pdf/elements/viewer-password-screen/viewer-password-screen.js
diff --git a/chrome/browser/resources/pdf/elements/viewer-password-screen/viewer-password-screen.js b/chrome/browser/resources/pdf/elements/viewer-password-screen/viewer-password-screen.js
index 0ca52a64a8ecb2283638db87b83c0554566fb041..ef1f1284a9fadc7e52ff9b99a7cb05a4f5b7fdf6 100644
--- a/chrome/browser/resources/pdf/elements/viewer-password-screen/viewer-password-screen.js
+++ b/chrome/browser/resources/pdf/elements/viewer-password-screen/viewer-password-screen.js
@@ -25,18 +25,20 @@ Polymer({
   },
 
   deny: function() {
-    this.$.password.disabled = false;
+    var password = /** @type {!PaperInputElement} */ (this.$.password);
+    password.disabled = false;
     this.$.submit.disabled = false;
     this.invalid = true;
-    this.$.password.focus();
-    this.$.password.inputElement.select();
+    password.focus();
+    password.inputElement.select();
   },
 
   submit: function() {
-    if (this.$.password.value.length == 0)
+    var password = /** @type {!PaperInputElement} */ (this.$.password);
+    if (password.value.length == 0)
       return;
-    this.$.password.disabled = true;
+    password.disabled = true;
     this.$.submit.disabled = true;
-    this.fire('password-submitted', {password: this.$.password.value});
+    this.fire('password-submitted', {password: password.value});
   },
 });