Revert of Remove SkThread.h, include SkMutex.h or SkAtomics.h as appropriate.

src/pathops/SkPathOpsDebug.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include "SkMutex.h"
+#include "SkPathOpsDebug.h"
 #include "SkPath.h"
-#include "SkPathOpsDebug.h"
 #include "SkString.h"
+#include "SkThread.h"
 
 #if DEBUG_VALIDATE
 extern bool FLAGS_runFail;
 #endif
 
 #if DEBUG_SORT
 int SkPathOpsDebug::gSortCountDefault = SK_MaxS32;
 int SkPathOpsDebug::gSortCount;
 #endif
 
@@ skipping 275 matching lines @@
             result.printf(CONIC_DEBUG_STR " id=%d",
                     CONIC_DEBUG_DATA(fCurvePart, fCurvePart.fConic.fWeight),
                     this->segment()->debugID());
             break;
         case SkPath::kCubic_Verb:
             result.printf(CUBIC_DEBUG_STR " id=%d", CUBIC_DEBUG_DATA(fCurvePart),
                     this->segment()->debugID());
             break;
         default:
             SkASSERT(0);
-    }
+    } 
     return result;
 }
 #endif
 
 #if DEBUG_SORT
 void SkOpAngle::debugLoop() const {
     const SkOpAngle* first = this;
     const SkOpAngle* next = this;
     do {
         next->dumpOne(true);
@@ skipping 337 matching lines @@
 #endif
     SkPath::FillType fillType = path.getFillType();
     SkASSERT(fillType >= SkPath::kWinding_FillType && fillType <= SkPath::kInverseEvenOdd_FillType);
     if (includeDeclaration) {
         SkDebugf("    SkPath %s;\n", name);
     }
     SkDebugf("    %s.setFillType(SkPath::%s);\n", name, gFillTypeStr[fillType]);
     iter.setPath(path);
     showPathContours(iter, name);
 }