Clean up Skia for Clang's -Wtautological-undefined-compare

src/core/SkRegion.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkRegionPriv.h"
@@ skipping 194 matching lines @@
         iter.next();
     }
     count += sprintf(result+count, ")");
     return result;
 }
 #endif
 
 ///////////////////////////////////////////////////////////////////////////////
 
 int SkRegion::count_runtype_values(int* itop, int* ibot) const {
-    if (this == NULL) {
-        *itop = SK_MinS32;
-        *ibot = SK_MaxS32;
-        return 0;
-    }
-
     int maxT;
 
     if (this->isRect()) {
         maxT = 2;
     } else {
         SkASSERT(this->isComplex());
         maxT = fRunHead->getIntervalCount() * 2;
     }
     *itop = fBounds.fTop;
     *ibot = fBounds.fBottom;
@@ skipping 1245 matching lines @@
 bool SkRegion::debugSetRuns(const RunType runs[], int count) {
     // we need to make a copy, since the real method may modify the array, and
     // so it cannot be const.
 
     SkAutoTArray<RunType> storage(count);
     memcpy(storage.get(), runs, count * sizeof(RunType));
     return this->setRuns(storage.get(), count);
 }
 
 #endif