Revert 254567 "don't create SkDevice directly, use SkBitmap or (..."

trunk/src/android_webview/browser/browser_view_renderer.cc

Index: trunk/src/android_webview/browser/browser_view_renderer.cc
===================================================================
--- trunk/src/android_webview/browser/browser_view_renderer.cc	(revision 254711)
+++ trunk/src/android_webview/browser/browser_view_renderer.cc	(working copy)
@@ -17,6 +17,7 @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
 #include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkBitmapDevice.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include "ui/gfx/vector2d_conversions.h"
@@ -479,10 +480,8 @@
 
 void BrowserViewRenderer::ForceFakeCompositeSW() {
   DCHECK(has_compositor_);
-  SkBitmap bitmap;
-  bitmap.allocN32Pixels(1, 1);
-  bitmap.eraseColor(0);
-  SkCanvas canvas(bitmap);
+  SkBitmapDevice device(SkBitmap::kARGB_8888_Config, 1, 1);
+  SkCanvas canvas(&device);
   CompositeSW(&canvas);
 }