Add a mimeHandler extension API.

chrome/browser/resources/pdf/pdf.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 'use strict';
 
 /**
  * @return {number} Width of a scrollbar in pixels
  */
 function getScrollbarWidth() {
@@ skipping 53 matching lines @@
                                 this.sizer_,
                                 this.viewportChanged_.bind(this),
                                 this.beforeZoom_.bind(this),
                                 this.afterZoom_.bind(this),
                                 getScrollbarWidth());
   // Create the plugin object dynamically so we can set its src. The plugin
   // element is sized to fill the entire window and is set to be fixed
   // positioning, acting as a viewport. The plugin renders into this viewport
   // according to the scroll position of the window.
   this.plugin_ = document.createElement('embed');
+  console.log('created plugin ' + this.plugin_ + ' ' +
+              this.plugin_.postMessage);
   // NOTE: The plugin's 'id' field must be set to 'plugin' since
   // chrome/renderer/printing/print_web_view_helper.cc actually references it.
   this.plugin_.id = 'plugin';
   this.plugin_.type = 'application/x-google-chrome-pdf';
   this.plugin_.addEventListener('message', this.handlePluginMessage_.bind(this),
                                 false);
 
   // Handle scripting messages from outside the extension that wish to interact
   // with it. We also send a message indicating that extension has loaded and
   // is ready to receive messages.
   window.addEventListener('message', this.handleScriptingMessage.bind(this),
                           false);
 
   document.title = getFilenameFromURL(this.streamDetails_.originalUrl);
   this.plugin_.setAttribute('src', this.streamDetails_.originalUrl);
   this.plugin_.setAttribute('stream-url', this.streamDetails_.streamUrl);
   var headers = '';
   for (var header in this.streamDetails_.responseHeaders) {
     headers += header + ': ' +
         this.streamDetails_.responseHeaders[header] + '\n';
   }
   this.plugin_.setAttribute('headers', headers);
 
   if (!this.streamDetails_.embedded)
     this.plugin_.setAttribute('full-frame', '');
   document.body.appendChild(this.plugin_);
+  console.log('added plugin to DOM ' + this.plugin_ + ' ' +
+              this.plugin_.postMessage);
 
   // Setup the button event listeners.
   $('fit-to-width-button').addEventListener('click',
       this.viewport_.fitToWidth.bind(this.viewport_));
   $('fit-to-page-button').addEventListener('click',
       this.viewport_.fitToPage.bind(this.viewport_));
   $('zoom-in-button').addEventListener('click',
       this.viewport_.zoomIn.bind(this.viewport_));
   $('zoom-out-button').addEventListener('click',
       this.viewport_.zoomOut.bind(this.viewport_));
@@ skipping 287 matching lines @@
           position.y = message.data.y;
         this.viewport_.position = position;
         break;
       case 'setTranslatedStrings':
         this.passwordScreen_.text = message.data.getPasswordString;
         this.progressBar_.text = message.data.loadingString;
         this.progressBar_.style.visibility = 'visible';
         this.errorScreen_.text = message.data.loadFailedString;
         break;
       case 'cancelStreamUrl':
-        chrome.streamsPrivate.abort(this.streamDetails_.streamUrl);
+        chrome.mimeHandlerPrivate.abortStream();
         break;
     }
   },
 
   /**
    * @private
    * A callback that's called before the zoom changes. Notify the plugin to stop
    * reacting to scroll events while zoom is taking place to avoid flickering.
    */
   beforeZoom_: function() {
     this.plugin_.postMessage({
       type: 'stopScrolling'
     });
   },
 
   /**
    * @private
    * A callback that's called after the zoom changes. Notify the plugin of the
    * zoom change and to continue reacting to scroll events.
    */
   afterZoom_: function() {
     var position = this.viewport_.position;
     var zoom = this.viewport_.zoom;
     if (this.shouldManageZoom_() && !this.setZoomInProgress_) {
       this.setZoomInProgress_ = true;
       chrome.tabs.setZoom(this.streamDetails_.tabId, zoom,
                           this.setZoomComplete_.bind(this, zoom));
     }
+    console.log('afterZoom_ ' + this.plugin_ + ' ' + this.plugin_.postMessage);
     this.plugin_.postMessage({
       type: 'viewport',
       zoom: zoom,
       xOffset: position.x,
       yOffset: position.y
     });
   },
 
   /**
    * @private
@@ skipping 159 matching lines @@
               this.streamDetails_.tabId != -1);
   },
 
   /**
    * @type {Viewport} the viewport of the PDF viewer.
    */
   get viewport() {
     return this.viewport_;
   }
 };