Change device factories to take SkImageInfo instead of SkBitmap::Config

src/pdf/SkPDFDevice.cpp

Index: src/pdf/SkPDFDevice.cpp
diff --git a/src/pdf/SkPDFDevice.cpp b/src/pdf/SkPDFDevice.cpp
index d227dd7d1cb9f5c7eb9e141826b6d180205c8ff2..9487dfd0a536589d074a74f24f9160f978660d82 100644
--- a/src/pdf/SkPDFDevice.cpp
+++ b/src/pdf/SkPDFDevice.cpp
@@ -585,13 +585,10 @@ void GraphicStackState::updateDrawingState(const GraphicStateEntry& state) {
     }
 }
 
-SkBaseDevice* SkPDFDevice::onCreateCompatibleDevice(SkBitmap::Config config,
-                                                    int width, int height,
-                                                    bool isOpaque,
-                                                    Usage usage) {
+SkBaseDevice* SkPDFDevice::onCreateDevice(const SkImageInfo& info, Usage usage) {
     SkMatrix initialTransform;
     initialTransform.reset();
-    SkISize size = SkISize::Make(width, height);
+    SkISize size = SkISize::Make(info.width(), info.height());
     return SkNEW_ARGS(SkPDFDevice, (size, size, initialTransform));
 }