Make canvas filters use the font size in effect when the filter is set

third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp

 // Copyright 2016 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/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h"
 
 #include "bindings/modules/v8/UnionTypesModules.h"
 #include "core/frame/ImageBitmap.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/StaticBitmapImage.h"
@@ skipping 114 matching lines @@
     return false;
 }
 
 SkImageFilter* OffscreenCanvasRenderingContext2D::stateGetFilter()
 {
     // TODO: make getFilter accept nullptr
     // return state().getFilter(nullptr, nullptr, IntSize(width(), height()), this);
     return nullptr;
 }
 
+void OffscreenCanvasRenderingContext2D::snapshotStateForFilter()

[Justin Novosad, 2016/04/18 18:03:22]

Nit: could put empty impl in header, like you did for PaintRenderingContext2D

[ajuma, 2016/04/18 21:32:44]

Done.

+{
+}
+
 void OffscreenCanvasRenderingContext2D::validateStateStack()
 {
 #if ENABLE(ASSERT)
     SkCanvas* skCanvas = existingDrawingCanvas();
     if (skCanvas) {
         ASSERT(static_cast<size_t>(skCanvas->getSaveCount()) == m_stateStack.size());
     }
 #endif
 }
 
 bool OffscreenCanvasRenderingContext2D::isContextLost() const
 {
     return false;
 }
 
 }