Change device creation to see the (optional) layer-paint

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 "SkDeviceProperties.h"
 #include "SkDraw.h"
@@ skipping 46 matching lines @@
 
 const SkBitmap& SkBaseDevice::accessBitmap(bool changePixels) {
     const SkBitmap& bitmap = this->onAccessBitmap();
     if (changePixels) {
         bitmap.notifyPixelsChanged();
     }
     return bitmap;
 }
 
 SkPixelGeometry SkBaseDevice::CreateInfo::AdjustGeometry(const SkImageInfo& info,
-                                                         Usage usage,
+                                                         TileUsage tileUsage,
                                                          SkPixelGeometry geo) {
-    switch (usage) {
-        case kGeneral_Usage:
+    switch (tileUsage) {
+        case kPossible_TileUsage:
             break;
-        case kSaveLayer_Usage:
+        case kNever_TileUsage:
             if (info.alphaType() != kOpaque_SkAlphaType) {
                 geo = kUnknown_SkPixelGeometry;
             }
             break;
-        case kImageFilter_Usage:
-            geo = kUnknown_SkPixelGeometry;
-            break;
     }
     return geo;
 }
 
 void SkBaseDevice::initForRootLayer(SkPixelGeometry geo) {
     // For now we don't expect to change the geometry for the root-layer, but we make the call
     // anyway to document logically what is going on.
     //
     fLeakyProperties->setPixelGeometry(CreateInfo::AdjustGeometry(this->imageInfo(),
-                                                                  kGeneral_Usage,
+                                                                  kPossible_TileUsage,
                                                                   geo));
 }
 
 SkSurface* SkBaseDevice::newSurface(const SkImageInfo&, const SkSurfaceProps&) { return NULL; }
 
 const void* SkBaseDevice::peekPixels(SkImageInfo*, size_t*) { return NULL; }
 
 void SkBaseDevice::drawDRRect(const SkDraw& draw, const SkRRect& outer,
                               const SkRRect& inner, const SkPaint& paint) {
     SkPath path;
@@ skipping 259 matching lines @@
     if (kUnknown_SkPixelGeometry == fLeakyProperties->pixelGeometry()
         || this->onShouldDisableLCD(paint)) {
 
         flags &= ~SkPaint::kLCDRenderText_Flag;
         flags |= SkPaint::kGenA8FromLCD_Flag;
     }
 
     return flags;
 }