Disallow certain blocking DOM calls during microtask execution.

third_party/WebKit/Source/core/frame/DOMWindow.h

 // 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.
 
 #ifndef DOMWindow_h
 #define DOMWindow_h
 
 #include "bindings/core/v8/Transferables.h"
 #include "core/CoreExport.h"
 #include "core/events/EventTarget.h"
@@ skipping 17 matching lines @@
 class Frame;
 class FrameRequestCallback;
 class History;
 class IdleRequestCallback;
 class IdleRequestOptions;
 class Location;
 class LocalDOMWindow;
 class MediaQueryList;
 class Navigator;
 class Screen;
+class ScriptState;
 class ScrollToOptions;
 class SerializedScriptValue;
 class Storage;
 class StyleMedia;
 
 class CORE_EXPORT DOMWindow : public EventTargetWithInlineData, public DOMWindowBase64 {
     DEFINE_WRAPPERTYPEINFO();
 public:
     ~DOMWindow() override;
 
@@ skipping 78 matching lines @@
     // This is the interface orientation in degrees. Some examples are:
     //  0 is straight up; -90 is when the device is rotated 90 clockwise;
     //  90 is when rotated counter clockwise.
     virtual int orientation() const = 0;
 
     virtual DOMSelection* getSelection() = 0;
 
     void focus(ExecutionContext*);
     virtual void blur() = 0;
     void close(ExecutionContext*);
-    virtual void print() = 0;
+    virtual void print(ScriptState*) = 0;
     virtual void stop() = 0;
 
-    virtual void alert(const String& message = String()) = 0;
-    virtual bool confirm(const String& message) = 0;
-    virtual String prompt(const String& message, const String& defaultValue) = 0;
+    virtual void alert(ScriptState*, const String& message = String()) = 0;
+    virtual bool confirm(ScriptState*, const String& message) = 0;
+    virtual String prompt(ScriptState*, const String& message, const String& defaultValue) = 0;
 
     virtual bool find(const String&, bool caseSensitive, bool backwards, bool wrap, bool wholeWord, bool searchInFrames, bool showDialog) const = 0;
 
     virtual void scrollBy(double x, double y, ScrollBehavior = ScrollBehaviorAuto) const = 0;
     virtual void scrollBy(const ScrollToOptions&) const = 0;
     virtual void scrollTo(double x, double y) const = 0;
     virtual void scrollTo(const ScrollToOptions&) const = 0;
     void scroll(double x, double y) const { scrollTo(x, y); }
     void scroll(const ScrollToOptions& scrollToOptions) const { scrollTo(scrollToOptions); }
     virtual void moveBy(int x, int y) const = 0;
@@ skipping 71 matching lines @@
     // implementation details to scripts.
     bool m_windowIsClosing;
 
 private:
     mutable Member<Location> m_location;
 };
 
 } // namespace blink
 
 #endif // DOMWindow_h