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

src/core/SkImageFilter.cpp

 /*
  * Copyright 2012 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 "SkImageFilter.h"
 
 #include "SkBitmap.h"
 #include "SkBitmapDevice.h"
 #include "SkChecksum.h"
 #include "SkDevice.h"
 #include "SkLazyPtr.h"
 #include "SkMatrixImageFilter.h"
+#include "SkMutex.h"
 #include "SkReadBuffer.h"
-#include "SkWriteBuffer.h"
 #include "SkRect.h"
 #include "SkTDynamicHash.h"
 #include "SkTInternalLList.h"
 #include "SkValidationUtils.h"
+#include "SkWriteBuffer.h"
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
 #include "GrDrawContext.h"
 #include "SkGrPixelRef.h"
 #include "SkGr.h"
 #endif
 
 #ifdef SK_BUILD_FOR_IOS
   enum { kDefaultCacheSize = 2 * 1024 * 1024 };
-#else 
+#else
   enum { kDefaultCacheSize = 128 * 1024 * 1024 };
-#endif 
+#endif
 
 static int32_t next_image_filter_unique_id() {
     static int32_t gImageFilterUniqueID;
 
     // Never return 0.
     int32_t id;
     do {
         id = sk_atomic_inc(&gImageFilterUniqueID) + 1;
     } while (0 == id);
     return id;
@@ skipping 495 matching lines @@
         dev = SkBitmapDevice::Create(cinfo.fInfo, surfaceProps);
     }
     return dev;
 }
 
 bool SkImageFilter::Proxy::filterImage(const SkImageFilter* filter, const SkBitmap& src,
                                        const SkImageFilter::Context& ctx,
                                        SkBitmap* result, SkIPoint* offset) {
     return fDevice->filterImage(filter, src, ctx, result, offset);
 }
-    
+