use factory for colorshader, class is deprecated

Source/platform/graphics/StaticBitmapPattern.cpp

Index: Source/platform/graphics/StaticBitmapPattern.cpp
diff --git a/Source/platform/graphics/StaticBitmapPattern.cpp b/Source/platform/graphics/StaticBitmapPattern.cpp
index 2e6a652c131709e139989350a30344539759bb33..58544e764bb9e8aa42b0a25262f2cda6a9e21910 100644
--- a/Source/platform/graphics/StaticBitmapPattern.cpp
+++ b/Source/platform/graphics/StaticBitmapPattern.cpp
@@ -7,8 +7,8 @@
 
 #include "platform/graphics/skia/SkiaUtils.h"
 #include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkColorShader.h"
 #include "third_party/skia/include/core/SkImage.h"
+#include "third_party/skia/include/core/SkShader.h"
 #include <v8.h>
 
 namespace blink {
@@ -33,7 +33,7 @@ PassRefPtr<SkShader> StaticBitmapPattern::createShader()
 {
     // If we have no image, return null
     if (!m_tileImage) {
-        return adoptRef(new SkColorShader(SK_ColorTRANSPARENT));
+        return adoptRef(SkShader::CreateColorShader(SK_ColorTRANSPARENT));
     }
 
     SkMatrix localMatrix = affineTransformToSkMatrix(m_patternSpaceTransformation);