Reland "Move GrGeometryProcessor's textures out of classes and into"

This reverts commit fdf05f4ff4e96e28a31e210cb471d149d736f528.

Reason for revert: Android fixed after removing multitexture support from TextureOp.

Original change's description:
> Revert "Move GrGeometryProcessor's textures out of classes and into"
> 
> This reverts commit af87483873f0b370b90ebe956301a13cc8662cbe.
> 
> Revert "GrGeometryProcessor derives from GrNonAtomicRef not GrProgramElement."
> 
> This reverts commit 607be37e3d4ddbe2163c200d6e13bcee981f6bf7.
> 
> Revert "Store GrMeshDrawOps' meshes in GrOpFlushState's arena."
> 
> This reverts commit b948572c7862214fe2e1fa6cdfcab4fc7b1666ac.
> 
> Revert "Remove multitexturing support from GrTextureOp."
> 
> This reverts commit 986f64c601f3ed99f84f0c392d1a42e298f6d618.
> 
> Revert "Make result of GrOp::combineIfPossible be an enum."
> 
> This reverts commit 641ac7daa81cbfca06b310803fb1a607d0fc2b32.
> 
> Bug: b/112244393
> Change-Id: I579491a3f2f2f2093f1e2a6141fa1e4cc7b760a4
> Reviewed-on: https://skia-review.googlesource.com/145646
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com

Change-Id: I1d41c2ecf7862e31fb025a7a00bb07bae9d83a47
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: b/112244393
Reviewed-on: https://skia-review.googlesource.com/145780
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/gm/convexpolyeffect.cpp b/gm/convexpolyeffect.cpp
index 41d53e6..664a9e7 100644
--- a/gm/convexpolyeffect.cpp
+++ b/gm/convexpolyeffect.cpp
@@ -87,8 +87,8 @@
                 SkMatrix::I()));
 
         SkASSERT(gp->debugOnly_vertexStride() == sizeof(SkPoint));
-        QuadHelper helper;
-        SkPoint* verts = reinterpret_cast<SkPoint*>(helper.init(target, sizeof(SkPoint), 1));
+        QuadHelper helper(target, sizeof(SkPoint), 1);
+        SkPoint* verts = reinterpret_cast<SkPoint*>(helper.vertices());
         if (!verts) {
             return;
         }
@@ -96,11 +96,9 @@
         SkPointPriv::SetRectTriStrip(verts, fRect, sizeof(SkPoint));
 
         auto pipe = target->makePipeline(0, std::move(fProcessors), target->detachAppliedClip());
-        helper.recordDraw(target, gp.get(), pipe.fPipeline, pipe.fFixedDynamicState);
+        helper.recordDraw(target, std::move(gp), pipe.fPipeline, pipe.fFixedDynamicState);
     }
 
-    bool onCombineIfPossible(GrOp* op, const GrCaps& caps) override { return false; }
-
     GrColor fColor;
     GrProcessorSet fProcessors;
     SkRect fRect;