Fix dst bound reported by SkTileImageFilter

src/effects/SkTileImageFilter.cpp

Index: src/effects/SkTileImageFilter.cpp
diff --git a/src/effects/SkTileImageFilter.cpp b/src/effects/SkTileImageFilter.cpp
index c5cf51871da4aab697086e21db0611afc3dcae1b..6acf9fd5ac36494d79579ceaa2154303d981150e 100644
--- a/src/effects/SkTileImageFilter.cpp
+++ b/src/effects/SkTileImageFilter.cpp
@@ -82,6 +82,10 @@ bool SkTileImageFilter::onFilterImage(Proxy* proxy, const SkBitmap& src,
     return true;
 }
 
+void SkTileImageFilter::computeFastBounds(const SkRect& src, SkRect* dst) const {
+    *dst = fDstRect;
+}
+
 bool SkTileImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
                                        SkIRect* dst) const {
     SkRect srcRect;
@@ -110,6 +114,15 @@ void SkTileImageFilter::flatten(SkWriteBuffer& buffer) const {
 #ifndef SK_IGNORE_TO_STRING
 void SkTileImageFilter::toString(SkString* str) const {
     str->appendf("SkTileImageFilter: (");
+    str->appendf("src: %.2f %.2f %.2f %.2f",
+                 fSrcRect.fLeft, fSrcRect.fTop, fSrcRect.fRight, fSrcRect.fBottom);
+    str->appendf(" dst: %.2f %.2f %.2f %.2f",
+                 fDstRect.fLeft, fDstRect.fTop, fDstRect.fRight, fDstRect.fBottom);
+    if (this->getInput(0)) {
+        str->appendf("input: (");
+        this->getInput(0)->toString(str);
+        str->appendf(")");
+    }
     str->append(")");
 }
 #endif