Remove <canvas>

sky/engine/core/html/canvas/EXTBlendMinMax.h

Index: sky/engine/core/html/canvas/EXTBlendMinMax.h
diff --git a/sky/engine/core/html/canvas/EXTBlendMinMax.h b/sky/engine/core/html/canvas/EXTBlendMinMax.h
deleted file mode 100644
index 54057bb62e50a4613132d0207d39b1ceb65c691c..0000000000000000000000000000000000000000
--- a/sky/engine/core/html/canvas/EXTBlendMinMax.h
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2014 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.
-
-#ifndef SKY_ENGINE_CORE_HTML_CANVAS_EXTBLENDMINMAX_H_
-#define SKY_ENGINE_CORE_HTML_CANVAS_EXTBLENDMINMAX_H_
-
-#include "sky/engine/tonic/dart_wrappable.h"
-#include "sky/engine/core/html/canvas/WebGLExtension.h"
-#include "sky/engine/wtf/PassRefPtr.h"
-
-namespace blink {
-
-class EXTBlendMinMax final : public WebGLExtension, public DartWrappable {
-    DEFINE_WRAPPERTYPEINFO();
-public:
-    static PassRefPtr<EXTBlendMinMax> create(WebGLRenderingContextBase*);
-    static bool supported(WebGLRenderingContextBase*);
-    static const char* extensionName();
-
-    virtual ~EXTBlendMinMax();
-    virtual WebGLExtensionName name() const override;
-
-private:
-    explicit EXTBlendMinMax(WebGLRenderingContextBase*);
-};
-
-} // namespace blink
-
-#endif  // SKY_ENGINE_CORE_HTML_CANVAS_EXTBLENDMINMAX_H_