Move SkUtils.h to src/core.

src/core/SkUtils.h

 /*
  * 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.
  */
 
 #ifndef SkUtils_DEFINED
 #define SkUtils_DEFINED
 
@@ skipping 72 matching lines @@
  */
     if (uni < 0x180B || uni > 0xE01EF) {
         return false;
     }
     if ((uni > 0x180D && uni < 0xFE00) || (uni > 0xFE0F && uni < 0xE0100)) {
         return false;
     }
     return true;
 }
 
-///////////////////////////////////////////////////////////////////////////////
-
-class SkAutoTrace {
-public:
-    /** NOTE: label contents are not copied, just the ptr is
-        retained, so DON'T DELETE IT.
-    */
-    SkAutoTrace(const char label[]) : fLabel(label) {
-        SkDebugf("--- trace: %s Enter\n", fLabel);
-    }
-    ~SkAutoTrace() {
-        SkDebugf("--- trace: %s Leave\n", fLabel);
-    }
-private:
-    const char* fLabel;
-};
-#define SkAutoTrace(...) SK_REQUIRE_LOCAL_VAR(SkAutoTrace)
-
 #endif