Bug 703109 - Add CreateOffscreenDrawTarget to gfxAndroidPlatform. r=Bas

gfx/thebes/gfxAndroidPlatform.cpp

@@ -79,6 +79,12 @@ gfxAndroidPlatform::CreateOffscreenSurface(const gfxIntSize& size,
     return newSurface.forget();
 }
 
+RefPtr<DrawTarget>
+gfxAndroidPlatform::CreateOffscreenDrawTarget(const IntSize& aSize, SurfaceFormat aFormat)
+{
+  return Factory::CreateDrawTarget(BACKEND_SKIA, aSize, aFormat);
+}
+
 nsresult
 gfxAndroidPlatform::GetFontList(nsIAtom *aLangGroup,
                                 const nsACString& aGenericFamily,

gfx/thebes/gfxAndroidPlatform.h

@@ -66,6 +66,9 @@ public:
     CreateOffscreenSurface(const gfxIntSize& size,
                            gfxASurface::gfxContentType contentType);
     
+    virtual mozilla::RefPtr<mozilla::gfx::DrawTarget>
+      CreateOffscreenDrawTarget(const mozilla::gfx::IntSize& aSize, mozilla::gfx::SurfaceFormat aFormat);
+
     virtual gfxImageFormat GetOffscreenFormat() { return gfxASurface::ImageFormatRGB16_565; }
     
     mozilla::RefPtr<mozilla::gfx::ScaledFont>