clean up more dead code

tests/PathOpsThreadedCommon.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 PathOpsThreadedCommon_DEFINED
 #define PathOpsThreadedCommon_DEFINED
 
 #include "SkGraphics.h"
-#include "SkRunnable.h"
 #include "SkTDArray.h"
 
 #define PATH_STR_SIZE 512
 
 class PathOpsThreadedRunnable;
 
 namespace skiatest {
 class Reporter;
 }
 
@@ skipping 15 matching lines @@
 
     ~PathOpsThreadedTestRunner();
 
     void render();
 
 public:
     SkTDArray<PathOpsThreadedRunnable*> fRunnables;
     skiatest::Reporter* fReporter;
 };
 
-class PathOpsThreadedRunnable : public SkRunnable {
+class PathOpsThreadedRunnable {
 public:
     PathOpsThreadedRunnable(void (*testFun)(PathOpsThreadState*), int a, int b, int c, int d,
             PathOpsThreadedTestRunner* runner) {
         fState.fA = a;
         fState.fB = b;
         fState.fC = c;
         fState.fD = d;
         fState.fReporter = runner->fReporter;
         fTestFun = testFun;
     }
 
     PathOpsThreadedRunnable(void (*testFun)(PathOpsThreadState*), const char* str,
             PathOpsThreadedTestRunner* runner) {
         SkASSERT(strlen(str) < sizeof(fState.fSerialNo) - 1);
         strcpy(fState.fSerialNo, str);
         fState.fReporter = runner->fReporter;
         fTestFun = testFun;
     }
 
     PathOpsThreadedRunnable(void (*testFun)(PathOpsThreadState*), int dirNo, const char* str,
             PathOpsThreadedTestRunner* runner) {
         SkASSERT(strlen(str) < sizeof(fState.fSerialNo) - 1);
         fState.fA = dirNo;
         strcpy(fState.fSerialNo, str);
         fState.fReporter = runner->fReporter;
         fTestFun = testFun;
     }
 
-    void run() override {
+    void operator()() {
         SkBitmap bitmap;
         fState.fBitmap = &bitmap;
         char pathStr[PATH_STR_SIZE];
         fState.fPathStr = pathStr;
         SkGraphics::SetTLSFontCacheLimit(1 * 1024 * 1024);
         (*fTestFun)(&fState);
     }
 
 private:
     PathOpsThreadState fState;
     void (*fTestFun)(PathOpsThreadState*);
 };
 
 #endif