Adds filter support for offscreen canvas

third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef StyleBuilderConverter_h
 #define StyleBuilderConverter_h
 
+#include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSIdentifierValue.h"
 #include "core/css/CSSStringValue.h"
 #include "core/css/CSSValue.h"
 #include "core/css/CSSValueList.h"
 #include "core/css/CSSValuePair.h"
 #include "core/css/resolver/StyleResolverState.h"
 #include "core/style/QuotesData.h"
 #include "core/style/ShadowList.h"
 #include "core/style/StyleOffsetRotation.h"
 #include "core/style/StyleReflection.h"
@@ skipping 26 matching lines @@
   static Color convertColor(StyleResolverState&,
                             const CSSValue&,
                             bool forVisitedLink = false);
   template <typename T>
   static T convertComputedLength(StyleResolverState&, const CSSValue&);
   static LengthBox convertClip(StyleResolverState&, const CSSValue&);
   static PassRefPtr<ClipPathOperation> convertClipPath(StyleResolverState&,
                                                        const CSSValue&);
   static FilterOperations convertFilterOperations(StyleResolverState&,
                                                   const CSSValue&);
+  static FilterOperations convertOffscreenFilterOperations(const CSSValue&);
   template <typename T>
   static T convertFlags(StyleResolverState&, const CSSValue&);
   static FontDescription::FamilyDescription convertFontFamily(
       StyleResolverState&,
       const CSSValue&);
   static PassRefPtr<FontFeatureSettings> convertFontFeatureSettings(
       StyleResolverState&,
       const CSSValue&);
   static PassRefPtr<FontVariationSettings> convertFontVariationSettings(
       StyleResolverState&,
@@ skipping 37 matching lines @@
                                                  const CSSValue&);
   static LengthPoint convertPosition(StyleResolverState&, const CSSValue&);
   static LengthPoint convertPositionOrAuto(StyleResolverState&,
                                            const CSSValue&);
   static float convertPerspective(StyleResolverState&, const CSSValue&);
   static Length convertQuirkyLength(StyleResolverState&, const CSSValue&);
   static PassRefPtr<QuotesData> convertQuotes(StyleResolverState&,
                                               const CSSValue&);
   static LengthSize convertRadius(StyleResolverState&, const CSSValue&);
   static EPaintOrder convertPaintOrder(StyleResolverState&, const CSSValue&);
-  static ShadowData convertShadow(StyleResolverState&, const CSSValue&);
+  static ShadowData convertShadow(const CSSToLengthConversionData&,
+                                  StyleResolverState*,
+                                  const CSSValue&);
+  static double convertValueToNumber(const CSSFunctionValue*,
+                                     const CSSPrimitiveValue*);
   static PassRefPtr<ShadowList> convertShadowList(StyleResolverState&,
                                                   const CSSValue&);
   static ShapeValue* convertShapeValue(StyleResolverState&, const CSSValue&);
   static float convertSpacing(StyleResolverState&, const CSSValue&);
   template <CSSValueID IdForNone>
   static AtomicString convertString(StyleResolverState&, const CSSValue&);
   static PassRefPtr<SVGDashArray> convertStrokeDasharray(StyleResolverState&,
                                                          const CSSValue&);
   static StyleColor convertStyleColor(StyleResolverState&,
                                       const CSSValue&,
@@ skipping 138 matching lines @@
                                                   const CSSValue& value) {
   if (value.isStringValue())
     return AtomicString(toCSSStringValue(value).value());
   DCHECK_EQ(toCSSIdentifierValue(value).getValueID(), IdForNone);
   return nullAtom;
 }
 
 }  // namespace blink
 
 #endif