Remove internal calls to SkImage::getTexture

src/image/SkImage_Gpu.h

Index: src/image/SkImage_Gpu.h
diff --git a/src/image/SkImage_Gpu.h b/src/image/SkImage_Gpu.h
index d4640d4afc581e4b731af47c46c1d84d4dd4fe1d..c640322a6531cebaa15e96424e43311da7251487 100644
--- a/src/image/SkImage_Gpu.h
+++ b/src/image/SkImage_Gpu.h
@@ -26,12 +26,10 @@ public:
     ~SkImage_Gpu() override;
 
     void applyBudgetDecision() const {
-        GrTexture* tex = this->getTexture();
-        SkASSERT(tex);
         if (SkBudgeted::kYes == fBudgeted) {
-            tex->resourcePriv().makeBudgeted();
+            fTexture->resourcePriv().makeBudgeted();
         } else {
-            tex->resourcePriv().makeUnbudgeted();
+            fTexture->resourcePriv().makeUnbudgeted();
         }
     }