Created min size for print preview dialog and modified to allow the

components/web_modal/web_contents_modal_dialog_manager.cc

 // Copyright (c) 2012 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.
 
 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 
 #include <utility>
 
 #include "components/web_modal/web_contents_modal_dialog_manager_delegate.h"
 #include "content/public/browser/navigation_details.h"
@@ skipping 17 matching lines @@
     WebContentsModalDialogManagerDelegate* d) {
   delegate_ = d;
 
   for (WebContentsModalDialogList::iterator it = child_dialogs_.begin();
        it != child_dialogs_.end(); it++) {
     // Delegate can be NULL on Views/Win32 during tab drag.
     (*it)->manager->HostChanged(d ? d->GetWebContentsModalDialogHost() : NULL);
   }
 }
 
-void WebContentsModalDialogManager::ShowModalDialog(gfx::NativeWindow dialog) {
+void WebContentsModalDialogManager::ShowModalDialog(
+    gfx::NativeWindow dialog, bool* independent_bounds,
+    const char * kHasIndependentBoundsKey) {
   std::unique_ptr<SingleWebContentsDialogManager> mgr(
-      CreateNativeWebModalManager(dialog, this));
+      CreateNativeWebModalManager(dialog, this, independent_bounds,
+                                  kHasIndependentBoundsKey));
   ShowDialogWithManager(dialog, std::move(mgr));
 }
 
 // TODO(gbillock): Maybe "ShowBubbleWithManager"?
 void WebContentsModalDialogManager::ShowDialogWithManager(
     gfx::NativeWindow dialog,
     std::unique_ptr<SingleWebContentsDialogManager> manager) {
   if (delegate_)
     manager->HostChanged(delegate_->GetWebContentsModalDialogHost());
   child_dialogs_.push_back(new DialogState(dialog, std::move(manager)));
@@ skipping 124 matching lines @@
   // some of these to close.  CloseAllDialogs is async, so it might get called
   // twice before it runs.
   CloseAllDialogs();
 }
 
 void WebContentsModalDialogManager::DidAttachInterstitialPage() {
   CloseAllDialogs();
 }
 
 }  // namespace web_modal