[DevTools] Add minimum size to WebInspector.View.

Source/devtools/front_end/InspectedPagePlaceholder.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.
 
 /**
  * @constructor
  * @extends {WebInspector.View}
  */
 WebInspector.InspectedPagePlaceholder = function()
 {
     WebInspector.View.call(this);
     WebInspector.zoomManager.addEventListener(WebInspector.ZoomManager.Events.ZoomChanged, this._onZoomChanged, this);
     this._margins = { top: false, right: false, bottom: false, left: false };
+    this.setMinimumSize(WebInspector.InspectedPagePlaceholder.Constraints.Width, WebInspector.InspectedPagePlaceholder.Constraints.Height);
 };
 
 WebInspector.InspectedPagePlaceholder.Constraints = {
     Width: 50,
     Height: 50
 };
 
 WebInspector.InspectedPagePlaceholder.MarginValue = 3;
 
 WebInspector.InspectedPagePlaceholder.prototype = {
@@ skipping 82 matching lines @@
             top: Math.ceil(insets.top),
             left: Math.ceil(insets.left),
             right: Math.ceil(insets.right),
             bottom: Math.ceil(insets.bottom)};
 
         InspectorFrontendHost.setContentsResizingStrategy(roundedInsets, minSize);
     },
 
     __proto__: WebInspector.View.prototype
 };