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

components/web_modal/web_contents_modal_dialog_manager.h

Index: components/web_modal/web_contents_modal_dialog_manager.h
diff --git a/components/web_modal/web_contents_modal_dialog_manager.h b/components/web_modal/web_contents_modal_dialog_manager.h
index 6505301c215f73fa3e250b800f239dd3de988208..e5782592ebd037cf097319a2cdb2f776ce557c78 100644
--- a/components/web_modal/web_contents_modal_dialog_manager.h
+++ b/components/web_modal/web_contents_modal_dialog_manager.h
@@ -7,6 +7,7 @@
 
 #include <deque>
 #include <memory>
+#include <set>
 
 #include "base/macros.h"
 #include "components/web_modal/single_web_contents_dialog_manager.h"
@@ -37,6 +38,12 @@ class WebContentsModalDialogManager
   // WillClose() when it is being destroyed.
   void ShowModalDialog(gfx::NativeWindow dialog);
 
+  // Shows the dialog as a non clipped web contents modal dialog. The dialog
+  // will be able to extend outside the bounds of the parent window on platforms
+  // where this is allowed. The dialog will notify via WillClose() when it is
+  // being destroyed.
+  void ShowNonClippedModalDialog(gfx::NativeWindow dialog);
+
   // Allow clients to supply their own native dialog manager. Suitable for
   // bubble clients.
   void ShowDialogWithManager(
@@ -53,6 +60,7 @@ class WebContentsModalDialogManager
   // SingleWebContentsDialogManagerDelegate:
   content::WebContents* GetWebContents() const override;
   void WillClose(gfx::NativeWindow dialog) override;
+  bool IsNonClipped(gfx::NativeWindow dialog) const override;
 
   // For testing.
   class TestApi {
@@ -114,6 +122,9 @@ class WebContentsModalDialogManager
   // All active dialogs.
   WebContentsModalDialogList child_dialogs_;
 
+  // All non clipped active dialogs.
+  std::set<gfx::NativeWindow> nonclipped_child_dialogs_;
+
   // True while closing the dialogs on WebContents close.
   bool closing_all_dialogs_;