Use newImageSnapshot() to get an image from a Canvas

Source/platform/graphics/BitmapPattern.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 //
 // The Chromium Authors can be found at
 // http://src.chromium.org/svn/trunk/src/AUTHORS
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //    * Redistributions of source code must retain the above copyright
@@ skipping 10 matching lines @@
 // "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 BitmapPattern_h
+#define BitmapPattern_h
+
+#include "platform/graphics/Pattern.h"
+
+namespace WebCore {
+
+class PLATFORM_EXPORT BitmapPattern : public Pattern {

[Justin Novosad, 2014/07/29 14:56:51]

Why is this exported?

[Rémi Piotaix, 2014/07/29 17:18:22]

Done.

+public:
+    static PassRefPtr<Pattern> create(PassRefPtr<Image> tileImage, bool repeatX, bool repeatY)

[Justin Novosad, 2014/07/29 14:56:52]

Should return PassRefPtr<BitmapPattern>. Implicit cast to a base class ptr works
fine

[Rémi Piotaix, 2014/07/29 17:18:22]

Done.

+    {
+        return adoptRef(new BitmapPattern(tileImage, repeatX, repeatY));
+    }
+
+    virtual ~BitmapPattern() { }
+
+    virtual PassRefPtr<SkShader> createShader() OVERRIDE;
+
+private:
+    BitmapPattern(PassRefPtr<Image>, bool repeatX, bool repeatY);
+
+    RefPtr<NativeImageSkia> m_tileImage;
+};
+
+} // namespace
+
+#endif