Simplify view getters on GrTextureProducer.

The only thing that affects the view returned is whether it ought to
be MIP mapped or not. So don't take a whole GrSamplerState.

The view() function won't ever change the colortype so just query
GrTextureProducer rather than having view() return a tuple.

The rest is transitively reaching through callers and callees of
GrTextureProducer::view() to only pass filter or GrMipMapped instead of
GrSamplerState. Also, some params that indicate whether MIPs are
requested are changed from bool to GrMipMapped. And some minor style
stuff (mainly de-yoda-ifying GrMipMapped checks, using
GrSurfaceProxyView operator bool()).

Change-Id: Ia184aa793cf51d42642ea3bb0521ce06da2efb10
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/274205
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/SkGpuDevice_drawTexture.cpp b/src/gpu/SkGpuDevice_drawTexture.cpp
index 7b2b1a9..2eb7788 100644
--- a/src/gpu/SkGpuDevice_drawTexture.cpp
+++ b/src/gpu/SkGpuDevice_drawTexture.cpp
@@ -241,14 +241,14 @@
     if (attemptDrawTexture && can_use_draw_texture(paint)) {
         // We've done enough checks above to allow us to pass ClampNearest() and not check for
         // scaling adjustments.
-        auto[view, ct] = producer->view(GrMipMapped::kNo);
+        auto view = producer->view(GrMipMapped::kNo);
         if (!view) {
             return;
         }
 
-        draw_texture(rtc, clip, ctm, paint, src, dst, dstClip, aa, aaFlags, constraint,
-                     std::move(view),
-                     {ct, producer->alphaType(), sk_ref_sp(producer->colorSpace())});
+        draw_texture(
+                rtc, clip, ctm, paint, src, dst, dstClip, aa, aaFlags, constraint, std::move(view),
+                {producer->colorType(), producer->alphaType(), sk_ref_sp(producer->colorSpace())});
         return;
     }
 
@@ -537,7 +537,7 @@
             uint32_t uniqueID;
             view = image->refPinnedView(this->context(), &uniqueID);
             if (!view) {
-                view = image->refView(this->context(), GrSamplerState::Filter::kBilerp);
+                view = image->refView(this->context(), GrMipMapped::kNo);
             }
         }