Proposed SkCanvas API for preLoading textures to VRAM v2.0

src/core/SkDevice.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 "SkDevice.h"
 #include "SkMetaData.h"
 
@@ skipping 179 matching lines @@
     return false;
 }
 
 bool SkBaseDevice::onReadPixels(const SkBitmap&, int x, int y, SkCanvas::Config8888) {
     return false;
 }
 
 #ifdef SK_SUPPORT_LEGACY_WRITEPIXELSCONFIG
 void SkBaseDevice::writePixels(const SkBitmap&, int x, int y, SkCanvas::Config8888) {}
 #endif
+
+void SkBaseDevice::EXPERIMENTAL_optimize(SkPicture* picture) {
+    // The base class doesn't perform any analysis but derived classes may
+}
+
+bool SkBaseDevice::EXPERIMENTAL_drawPicture(const SkPicture& picture) {
+    // The base class doesn't perform any accelerated picture rendering
+    return false;
+}