OOP PDF: Reset FittingType when manually setting the zoom.

chrome/browser/resources/pdf/viewport.js

 // Copyright 2014 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.
 
 /**
  * Returns the height of the intersection of two rectangles.
  * @param {Object} rect1 the first rect
  * @param {Object} rect2 the second rect
  * @return {number} the height of the intersection of the rects
  */
@@ skipping 224 matching lines @@
     // Scroll to the scaled scroll position.
     this.window_.scrollTo(currentScrollPos[0] * newZoom,
                           currentScrollPos[1] * newZoom);
   },
 
   /**
    * Sets the zoom to the given zoom level.
    * @param {number} newZoom the zoom level to zoom to.
    */
   setZoom: function(newZoom) {
+    this.fittingType_ = Viewport.FittingType.NONE;
     newZoom = Math.max(Viewport.ZOOM_FACTOR_RANGE.min,
                        Math.min(newZoom, Viewport.ZOOM_FACTOR_RANGE.max));
     this.mightZoom_(function() {
       this.setZoomInternal_(newZoom);
       this.updateViewport_();
     }.bind(this));
   },
 
   /**
    * @type {number} the width of scrollbars in the viewport in pixels.
@@ skipping 295 matching lines @@
     spaceOnLeft = Math.max(spaceOnLeft, 0);
 
     return {
       x: x * this.zoom_ + spaceOnLeft - this.window_.pageXOffset,
       y: insetDimensions.y * this.zoom_ - this.window_.pageYOffset,
       width: insetDimensions.width * this.zoom_,
       height: insetDimensions.height * this.zoom_
     };
   }
 };