Remove array of TextureSampler pointers from GrIOResourceProcessor.

Instead store sampler count on base class and subclasses implement a
virtual to get the ith sampler.

Change-Id: I13e2447a6467a09761d8615acb4aa360b87b1476
Reviewed-on: https://skia-review.googlesource.com/141563
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/GrPrimitiveProcessor.h b/src/gpu/GrPrimitiveProcessor.h
index e47d868..cc24b64 100644
--- a/src/gpu/GrPrimitiveProcessor.h
+++ b/src/gpu/GrPrimitiveProcessor.h
@@ -12,6 +12,8 @@
 #include "GrProcessor.h"
 #include "GrShaderVar.h"
 
+class GrCoordTransform;
+
 /*
  * The GrPrimitiveProcessor represents some kind of geometric primitive.  This includes the shape
  * of the primitive and the inherent color of the primitive.  The GrPrimitiveProcessor is