Rename flushForExternalRead->flushForExternalIO and always call in SkSurface::getTextureHandle

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "GrBlurUtils.h"
@@ skipping 1719 matching lines @@
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 bool SkGpuDevice::onShouldDisableLCD(const SkPaint& paint) const {
     return GrTextContext::ShouldDisableLCD(paint);
 }
 
 void SkGpuDevice::flush() {
     DO_DEFERRED_CLEAR();
-    fRenderTarget->prepareForExternalRead();
+    fRenderTarget->prepareForExternalIO();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 SkBaseDevice* SkGpuDevice::onCreateDevice(const CreateInfo& cinfo, const SkPaint*) {
     GrSurfaceDesc desc;
     desc.fConfig = fRenderTarget->config();
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
     desc.fWidth = cinfo.fInfo.width();
     desc.fHeight = cinfo.fInfo.height();
@@ skipping 96 matching lines @@
 #endif
 }
 
 SkImageFilter::Cache* SkGpuDevice::getImageFilterCache() {
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkImageFilter::Cache::Create(kDefaultImageFilterCacheSize);
 }
 
 #endif