Make SVG images for custom CSS cursors appear sharp on retina displays

Source/web/ChromeClientImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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.
@@ skipping 698 matching lines @@
     toWebPopupMenuImpl(webwidget)->initialize(popupContainer, bounds);
 }
 
 void ChromeClientImpl::popupClosed(WebCore::PopupContainer* popupContainer)
 {
     m_webView->popupClosed(popupContainer);
 }
 
 void ChromeClientImpl::setCursor(const WebCore::Cursor& cursor)
 {
-    setCursor(WebCursorInfo(cursor));
+    setCursor(WebCursorInfo(rasterizeSVGCursor(cursor, m_webView->deviceScaleFactor())));

[pdr., 2013/12/04 20:55:40]

Is this codepath only used for SVG cursors?

[Evan Wallace, 2013/12/04 21:31:09]

Yes, rasterizeSVGCursor() will only rasterize the cursor if it contains an SVG
image (if isSVGImage() returns true).

 }
 
 void ChromeClientImpl::setCursor(const WebCursorInfo& cursor)
 {
 #if OS(MACOSX)
     // On Mac the mousemove event propagates to both the popup and main window.
     // If a popup is open we don't want the main window to change the cursor.
     if (m_webView->hasOpenedPopup())
         return;
 #endif
@@ skipping 303 matching lines @@
 {
 }
 
 void NavigatorContentUtilsClientImpl::registerProtocolHandler(const String& scheme, const String& baseURL, const String& url, const String& title)
 {
     m_webView->client()->registerProtocolHandler(scheme, baseURL, url, title);
 }
 #endif
 
 } // namespace blink