Propagate browser zoom changes to embedded PDFs.

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 113 matching lines @@
   if (chrome.tabs && this.browserApi_.getStreamInfo().tabId != -1) {
     this.errorScreen_.reloadFn = function() {
       chrome.tabs.reload(this.browserApi_.getStreamInfo().tabId);
     }.bind(this);
   }
 
   // Create the viewport.
   var shortWindow = window.innerHeight < PDFViewer.TOOLBAR_WINDOW_MIN_HEIGHT;
   var topToolbarHeight =
       (toolbarEnabled) ? PDFViewer.MATERIAL_TOOLBAR_HEIGHT : 0;
+  var defaultZoom =
+      this.browserApi_.getZoomBehavior() == BrowserApi.ZoomBehavior.MANAGE ?
+      this.browserApi_.getDefaultZoom() : 1.0;
   this.viewport_ = new Viewport(window,
                                 this.sizer_,
                                 this.viewportChanged_.bind(this),
                                 this.beforeZoom_.bind(this),
                                 this.afterZoom_.bind(this),
                                 getScrollbarWidth(),
-                                this.browserApi_.getDefaultZoom(),
+                                defaultZoom,
                                 topToolbarHeight);
 
   // 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');
   // 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';
@@ skipping 72 matching lines @@
     var disposition =
         e.detail.newtab ? Navigator.WindowOpenDisposition.NEW_BACKGROUND_TAB :
                           Navigator.WindowOpenDisposition.CURRENT_TAB;
     this.navigator_.navigate(e.detail.uri, disposition);
   }.bind(this));
 
   this.toolbarManager_ =
       new ToolbarManager(window, this.toolbar_, this.zoomToolbar_);
 
   // Set up the ZoomManager.
-  this.zoomManager_ = new ZoomManager(
-      this.viewport_, this.browserApi_.setZoom.bind(this.browserApi_),
+  this.zoomManager_ = ZoomManager.create(
+      this.browserApi_.getZoomBehavior(), this.viewport_,
+      this.browserApi_.setZoom.bind(this.browserApi_),
       this.browserApi_.getInitialZoom());
+  this.viewport_.zoomManager = this.zoomManager_;
   this.browserApi_.addZoomEventListener(
       this.zoomManager_.onBrowserZoomChange.bind(this.zoomManager_));
 
   // Setup the keyboard event listener.
   document.addEventListener('keydown', this.handleKeyEvent_.bind(this));
   document.addEventListener('mousemove', this.handleMouseEvent_.bind(this));
   document.addEventListener('mouseout', this.handleMouseEvent_.bind(this));
 
   var isInTab = this.browserApi_.getStreamInfo().tabId != -1;
   this.navigator_ = new Navigator(
@@ skipping 672 matching lines @@
    * Each bookmark is an Object containing a:
    * - title
    * - page (optional)
    * - array of children (themselves bookmarks)
    * @type {Array} the top-level bookmarks of the PDF.
    */
   get bookmarks() {
     return this.bookmarks_;
   }
 };