Update use of SkCanvas and SkDevice to match change in Skia

skia/ext/bitmap_platform_device_linux.cc

Index: skia/ext/bitmap_platform_device_linux.cc
diff --git a/skia/ext/bitmap_platform_device_linux.cc b/skia/ext/bitmap_platform_device_linux.cc
index 4c566b4e3bb3c17d2a56d4b5f9f8ff8385869ac5..d976b9cf6adc982f2556f677485a6c87c0379dfd 100644
--- a/skia/ext/bitmap_platform_device_linux.cc
+++ b/skia/ext/bitmap_platform_device_linux.cc
@@ -37,6 +37,14 @@ void LoadClipToContext(cairo_t* context, const SkRegion& clip) {
 
 }  // namespace
 
+SkDevice* SkBitmapPlatformDeviceFactory::newDevice(SkBitmap::Config config,
+                                                   int width, int height,
+                                                   bool isOpaque,
+                                                   bool isForLayer) {
+  SkASSERT(config == SkBitmap::kARGB_8888_Config);
+  return BitmapPlatformDevice::Create(width, height, isOpaque);
+}
+
 BitmapPlatformDevice::BitmapPlatformDeviceData::BitmapPlatformDeviceData(
     cairo_surface_t* surface)
     : surface_(surface),