Removed unused parameters

src/effects/SkTestImageFilters.cpp

 
 #include "SkTestImageFilters.h"
 #include "SkCanvas.h"
 #include "SkDevice.h"
 #include "SkFlattenableBuffers.h"
 
 // Simple helper canvas that "takes ownership" of the provided device, so that
 // when this canvas goes out of scope, so will its device. Could be replaced
 // with the following:
 //
@@ skipping 51 matching lines @@
     return inner->filterBounds(src, ctm, &tmp) &&
            outer->filterBounds(tmp, ctm, dst);
 }
 
 SkComposeImageFilter::SkComposeImageFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 bool SkDownSampleImageFilter::onFilterImage(Proxy* proxy, const SkBitmap& src,
-                                            const SkMatrix& matrix,
+                                            const SkMatrix&,
                                             SkBitmap* result, SkIPoint*) {
     SkScalar scale = fScale;
     if (scale > SK_Scalar1 || scale <= 0) {
         return false;
     }
 
     int dstW = SkScalarRoundToInt(src.width() * scale);
     int dstH = SkScalarRoundToInt(src.height() * scale);
     if (dstW < 1) {
         dstW = 1;
@@ skipping 37 matching lines @@
 
 void SkDownSampleImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const {
     this->INHERITED::flatten(buffer);
 
     buffer.writeScalar(fScale);
 }
 
 SkDownSampleImageFilter::SkDownSampleImageFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {
     fScale = buffer.readScalar();
 }