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

patch from issue 167033002

BUG=skia:
R=reed@google.com

Author: reed@chromium.org

Review URL: https://codereview.chromium.org/168653002

git-svn-id: http://skia.googlecode.com/svn/trunk@13463 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/CanvasStateTest.cpp b/tests/CanvasStateTest.cpp
index 7c441a4..29e67f2 100644
--- a/tests/CanvasStateTest.cpp
+++ b/tests/CanvasStateTest.cpp
@@ -186,8 +186,9 @@
 
 static void test_draw_filters(skiatest::Reporter* reporter) {
     TestDrawFilter drawFilter;
-    SkBitmapDevice device(SkBitmap::kARGB_8888_Config, 10, 10);
-    SkCanvas canvas(&device);
+    SkBitmap bitmap;
+    bitmap.allocN32Pixels(10, 10);
+    SkCanvas canvas(bitmap);
 
     canvas.setDrawFilter(&drawFilter);
 
@@ -209,8 +210,9 @@
 static void error_callback(SkError code, void* ctx) {}
 
 static void test_soft_clips(skiatest::Reporter* reporter) {
-    SkBitmapDevice device(SkBitmap::kARGB_8888_Config, 10, 10);
-    SkCanvas canvas(&device);
+    SkBitmap bitmap;
+    bitmap.allocN32Pixels(10, 10);
+    SkCanvas canvas(bitmap);
 
     SkRRect roundRect;
     roundRect.setOval(SkRect::MakeWH(5, 5));