Proposed SkCanvas API for preLoading textures to VRAM

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
===================================================================
--- src/gpu/SkGpuDevice.cpp	(revision 13719)
+++ src/gpu/SkGpuDevice.cpp	(working copy)
@@ -1770,6 +1770,10 @@
                           offset);
 }
 
+void SkGpuDevice::internalPrivate_PreLoad(const SkBitmap& bitmap, const SkIRect& rect) {
+    // TODO: load bitmap into VRAM
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 // must be in SkCanvas::VertexMode order