<webview>-based Signin Page: Navigate on Drag and Drop

chrome/browser/resources/gaia_auth_host/authenticator.js

Index: chrome/browser/resources/gaia_auth_host/authenticator.js
diff --git a/chrome/browser/resources/gaia_auth_host/authenticator.js b/chrome/browser/resources/gaia_auth_host/authenticator.js
index e7d549c977d49861cfa998eabd32acf19ed72553..a80ec1ebae9ddba6946ccaee87c60c0fc0c2a230 100644
--- a/chrome/browser/resources/gaia_auth_host/authenticator.js
+++ b/chrome/browser/resources/gaia_auth_host/authenticator.js
@@ -91,6 +91,7 @@ cr.define('cr.login', function() {
     this.reloadUrl_ = null;
     this.trusted_ = true;
 
+    this.webview_.addEventListener('drop', this.onDrop_.bind(this));
     this.webview_.addEventListener(
         'newwindow', this.onNewWindow_.bind(this));
     this.webview_.addEventListener(
@@ -334,6 +335,16 @@ cr.define('cr.login', function() {
   };
 
   /**
+   * Invoked at the drop phase of a drag-and-drop operation on the webview.
+   * @private
+   */
+  Authenticator.prototype.onDrop_ = function(e) {
+    var url = e.dataTransfer.getData('url');
+    if (url)
+      this.dispatchEvent(new CustomEvent('dropLink', {detail: url}));
+  };
+
+  /**
    * Invoked when the webview attempts to open a new window.
    * @private
    */