Revert of increase small allocator limit to encompass compose shader

src/core/SkImagePriv.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkImagePriv_DEFINED
 #define SkImagePriv_DEFINED
 
 #include "SkImage.h"
 #include "SkSmallAllocator.h"
 #include "SkSurface.h"
 
 enum SkCopyPixelsMode {
     kIfMutable_SkCopyPixelsMode,  //!< only copy src pixels if they are marked mutable
     kAlways_SkCopyPixelsMode,     //!< always copy src pixels (even if they are marked immutable)
     kNever_SkCopyPixelsMode,      //!< never copy src pixels (even if they are marked mutable)
 };
 
-enum {kSkBlitterContextSize = 5300};  // minimum required for compose shader blitter
+enum {kSkBlitterContextSize = 3332};
 
 // Commonly used allocator. It currently is only used to allocate up to 3 objects. The total
 // bytes requested is calculated using one of our large shaders, its context size plus the size of
 // an Sk3DBlitter in SkDraw.cpp
 // Note that some contexts may contain other contexts (e.g. for compose shaders), but we've not
 // yet found a situation where the size below isn't big enough.
 typedef SkSmallAllocator<3, kSkBlitterContextSize> SkTBlitterAllocator;
 
 // If alloc is non-nullptr, it will be used to allocate the returned SkShader, and MUST outlive
 // the SkShader.
@@ skipping 39 matching lines @@
 extern void SkTextureImageApplyBudgetedDecision(SkImage* textureImage);
 
 // Update the texture wrapped by an image created with NewTexture. This
 // is called when a surface and image share the same GrTexture and the
 // surface needs to perform a copy-on-write
 extern void SkTextureImageSetTexture(SkImage* image, GrTexture* texture);
 
 GrTexture* GrDeepCopyTexture(GrTexture* src, SkBudgeted);
 
 #endif