Support display: contents for elements, first-line and first-letter pseudos.

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2DState.cpp

 // Copyright 2015 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.
 
 #include "modules/canvas2d/CanvasRenderingContext2DState.h"
 
 #include "core/css/CSSFontSelector.h"
 #include "core/css/resolver/FilterOperationResolver.h"
 #include "core/css/resolver/StyleBuilder.h"
 #include "core/css/resolver/StyleResolverState.h"
@@ skipping 311 matching lines @@
   if (!m_resolvedFilter) {
     // Update the filter value to the proper base URL if needed.
     if (m_filterValue->mayContainUrl())
       m_filterValue->reResolveUrl(styleResolutionHost->document());
 
     RefPtr<ComputedStyle> filterStyle = ComputedStyle::create();
     // Must set font in case the filter uses any font-relative units (em, ex)
     filterStyle->setFont(m_fontForFilter);
 
     StyleResolverState resolverState(styleResolutionHost->document(),
-                                     styleResolutionHost, filterStyle.get());
+                                     styleResolutionHost, filterStyle.get(),
+                                     filterStyle.get());
     resolverState.setStyle(filterStyle);
 
     StyleBuilder::applyProperty(CSSPropertyFilter, resolverState,
                                 *m_filterValue);
     resolverState.loadPendingResources();
 
     // We can't reuse m_fillFlags and m_strokeFlags for the filter, since these
     // incorporate the global alpha, which isn't applicable here.
     PaintFlags fillFlagsForFilter;
     m_fillStyle->applyToFlags(fillFlagsForFilter);
@@ skipping 249 matching lines @@
     flags->setLooper(0);
     flags->setImageFilter(shadowAndForegroundImageFilter());
     return flags;
   }
   flags->setLooper(sk_ref_sp(shadowAndForegroundDrawLooper()));
   flags->setImageFilter(0);
   return flags;
 }
 
 }  // namespace blink