Proposed SkCanvas API for preLoading textures to VRAM v2.0

src/core/SkCanvas.cpp

Index: src/core/SkCanvas.cpp
===================================================================
--- src/core/SkCanvas.cpp	(revision 13762)
+++ src/core/SkCanvas.cpp	(working copy)
@@ -2404,8 +2404,14 @@
 }
 
 ///////////////////////////////////////////////////////////////////////////////
+void SkCanvas::drawPicture(SkPicture& picture) {
+    SkBaseDevice* device = this->getDevice();
+    if (NULL != device) {
+        if (device->EXPERIMENTAL_optimizedRender(picture)) {
+            return; // the device has rendered the entire picture
+        }
+    }
 
-void SkCanvas::drawPicture(SkPicture& picture) {
     picture.draw(this);
 }