Scale scrollbar width in popup properly

third_party/WebKit/Source/web/WebPagePopupImpl.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 37 matching lines @@
 #include "core/page/PagePopupSupplement.h"
 #include "modules/accessibility/AXObject.h"
 #include "modules/accessibility/AXObjectCacheImpl.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "platform/LayoutTestSupport.h"
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/heap/Handle.h"
 #include "platform/tracing/TraceEvent.h"
 #include "public/platform/WebCompositeAndReadbackAsyncCallback.h"
 #include "public/platform/WebCursorInfo.h"
+#include "public/platform/WebFloatRect.h"
 #include "public/web/WebAXObject.h"
 #include "public/web/WebFrameClient.h"
 #include "public/web/WebViewClient.h"
 #include "public/web/WebWidgetClient.h"
 #include "web/WebInputEventConversion.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebSettingsImpl.h"
 #include "web/WebViewImpl.h"
 #include "wtf/PtrUtil.h"
 
@@ skipping 21 matching lines @@
   IntRect viewportToScreen(const IntRect& rect,
                            const Widget* widget) const override {
     WebRect rectInScreen(rect);
     WebRect windowRect = m_popup->windowRectInScreen();
     m_popup->widgetClient()->convertViewportToWindow(&rectInScreen);
     rectInScreen.x += windowRect.x;
     rectInScreen.y += windowRect.y;
     return rectInScreen;
   }
 
+  float windowToViewportScalar(const float scalarValue) const override {
+    WebFloatRect viewportRect(0, 0, scalarValue, 0);
+    m_popup->widgetClient()->convertWindowToViewport(&viewportRect);
+    return viewportRect.width;
+  }
+
   void addMessageToConsole(LocalFrame*,
                            MessageSource,
                            MessageLevel,
                            const String& message,
                            unsigned lineNumber,
                            const String&,
                            const String&) override {
 #ifndef NDEBUG
     fprintf(stderr, "CONSOLE MESSSAGE:%u: %s\n", lineNumber,
             message.utf8().data());
@@ skipping 473 matching lines @@
   // A WebPagePopupImpl instance usually has two references.
   //  - One owned by the instance itself. It represents the visible widget.
   //  - One owned by a WebViewImpl. It's released when the WebViewImpl ask the
   //    WebPagePopupImpl to close.
   // We need them because the closing operation is asynchronous and the widget
   // can be closed while the WebViewImpl is unaware of it.
   return adoptRef(new WebPagePopupImpl(client)).leakRef();
 }
 
 }  // namespace blink