pin as texture api

src/core/SkCanvas.cpp

Index: src/core/SkCanvas.cpp
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 80ff34d417e3a08f08fcda4e41e8c1d52e2617d5..bad05151889a6d385a705b12c5ced048fb8226e2 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -2372,7 +2372,26 @@ bool SkCanvas::canDrawBitmapAsSprite(SkScalar x, SkScalar y, int w, int h, const
     return ir.contains(fMCRec->fRasterClip.getBounds());
 }
 
+class TestPinImage {
+public:
+    TestPinImage(SkCanvas* canvas, const SkImage* image) {
+        if ((fCtx = canvas->getGrContext()) != nullptr) {
+            fImage = image;
+            image->pinAsTexture(fCtx);
+        }
+    }
+    ~TestPinImage() {
+        if (fImage) {
+            fImage->unpinAsTexture(fCtx);
+        }
+    }
+    GrContext* fCtx;
+    const SkImage* fImage = nullptr;
+};
+
 void SkCanvas::onDrawImage(const SkImage* image, SkScalar x, SkScalar y, const SkPaint* paint) {
+    TestPinImage test(this, image);
+
     TRACE_EVENT0("disabled-by-default-skia", "SkCanvas::drawImage()");
     SkRect bounds = SkRect::MakeXYWH(x, y,
                                      SkIntToScalar(image->width()), SkIntToScalar(image->height()));
@@ -2444,6 +2463,8 @@ void SkCanvas::onDrawImageLattice(const SkImage* image, const Lattice& lattice,
 
 void SkCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst,
                                const SkPaint* paint, SrcRectConstraint constraint) {
+    TestPinImage test(this, image);
+
     TRACE_EVENT0("disabled-by-default-skia", "SkCanvas::drawImageRect()");
     if (nullptr == paint || paint->canComputeFastBounds()) {
         SkRect storage = dst;