Remove support for -webkit-color-correction (which we've never supported on

Source/core/platform/mock/ScrollbarThemeMock.cpp

Index: Source/core/platform/mock/ScrollbarThemeMock.cpp
diff --git a/Source/core/platform/mock/ScrollbarThemeMock.cpp b/Source/core/platform/mock/ScrollbarThemeMock.cpp
index 9b5728fd5c4c603f49ea92df08287747aca9cc2a..df9811ac4d993d32f7fc3a8d3cb6f9eab46b965f 100644
--- a/Source/core/platform/mock/ScrollbarThemeMock.cpp
+++ b/Source/core/platform/mock/ScrollbarThemeMock.cpp
@@ -49,13 +49,13 @@ bool ScrollbarThemeMock::usesOverlayScrollbars() const
 
 void ScrollbarThemeMock::paintTrackBackground(GraphicsContext* context, ScrollbarThemeClient* scrollbar, const IntRect& trackRect)
 {
-    context->fillRect(trackRect, scrollbar->enabled() ? Color::lightGray : Color(0xFFE0E0E0), ColorSpaceDeviceRGB);
+    context->fillRect(trackRect, scrollbar->enabled() ? Color::lightGray : Color(0xFFE0E0E0));
 }
 
 void ScrollbarThemeMock::paintThumb(GraphicsContext* context, ScrollbarThemeClient* scrollbar, const IntRect& thumbRect)
 {
     if (scrollbar->enabled())
-        context->fillRect(thumbRect, Color::darkGray, ColorSpaceDeviceRGB);
+        context->fillRect(thumbRect, Color::darkGray);
 }
 
 }