In SkDraw::drawRect, use SkPath for huge rects.

src/core/SkAAClip.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkAAClip_DEFINED
 #define SkAAClip_DEFINED
 
@@ skipping 45 matching lines @@
      *  the mask, using kA8_Format
      */
     void copyToMask(SkMask*) const;
 
     // called internally
 
     bool quickContains(int left, int top, int right, int bottom) const;
     bool quickContains(const SkIRect& r) const {
         return this->quickContains(r.fLeft, r.fTop, r.fRight, r.fBottom);
     }
+    bool quickContains(const SkRect& r) const;
 
     const uint8_t* findRow(int y, int* lastYForRow = nullptr) const;
     const uint8_t* findX(const uint8_t data[], int x, int* initialCount = nullptr) const;
 
     class Iter;
     struct RunHead;
     struct YOffset;
     class Builder;
 
 #ifdef SK_DEBUG
@@ skipping 51 matching lines @@
     enum {
         kSize = 32 * 32
     };
     SkAutoSMalloc<kSize> fGrayMaskScratch;  // used for blitMask
     void* fScanlineScratch;  // enough for a mask at 32bit, or runs+aa
 
     void ensureRunsAndAA();
 };
 
 #endif