Remove deprecated paths from image filter infrastructure.

include/core/SkDevice.h

Index: include/core/SkDevice.h
diff --git a/include/core/SkDevice.h b/include/core/SkDevice.h
index c15aeccf82dc52786b6899cfcdbfabc885fe9e36..2377b57dfb7482f0ec40dd781245bd77dfb05b04 100644
--- a/include/core/SkDevice.h
+++ b/include/core/SkDevice.h
@@ -280,28 +280,6 @@ protected:
     */
     virtual const SkBitmap& onAccessBitmap() = 0;
 
-    /**
-     *  Override and return true for filters that the device can handle
-     *  intrinsically. Doing so means that SkCanvas will pass-through this
-     *  filter to drawSprite and drawDevice (and potentially filterImage).
-     *  Returning false means the SkCanvas will have apply the filter itself,
-     *  and just pass the resulting image to the device.
-     */
-    virtual bool canHandleImageFilter(const SkImageFilter*) { return false; }
-
-    /**
-     *  Related (but not required) to canHandleImageFilter, this method returns
-     *  true if the device could apply the filter to the src bitmap and return
-     *  the result (and updates offset as needed).
-     *  If the device does not recognize or support this filter,
-     *  it just returns false and leaves result and offset unchanged.
-     */
-    virtual bool filterImage(const SkImageFilter*, const SkBitmap&,
-                             const SkImageFilter::Context&,
-                             SkBitmap* /*result*/, SkIPoint* /*offset*/) {
-        return false;
-    }
-
 protected:
     virtual sk_sp<SkSurface> makeSurface(const SkImageInfo&, const SkSurfaceProps&);
     virtual bool onPeekPixels(SkPixmap*) { return false; }