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# HG changeset patch
# Parent 9d3c9b863c697634e434b687d456bb82fa794ecf
# User  Uli Schlachter <psychon@znc.in>
Bug 722975 - --enable-system-cairo build is broken after Bug 715658 fixed


diff --git a/gfx/thebes/gfxPlatform.cpp b/gfx/thebes/gfxPlatform.cpp
--- gfx/thebes/gfxPlatform.cpp
+++ gfx/thebes/gfxPlatform.cpp
@@ -484,21 +484,19 @@ gfxPlatform::CreateDrawTargetForSurface(
 
 cairo_user_data_key_t kSourceSurface;
 
 void SourceBufferDestroy(void *srcBuffer)
 {
   static_cast<SourceSurface*>(srcBuffer)->Release();
 }
 
-void SourceSnapshotDetached(cairo_surface_t *nullSurf)
+void SourceSnapshotDetached(void *nullSurf)
 {
-  gfxImageSurface* origSurf =
-    static_cast<gfxImageSurface*>(cairo_surface_get_user_data(nullSurf, &kSourceSurface));
-
+  gfxImageSurface *origSurf = static_cast<gfxImageSurface*>(nullSurf);
   origSurf->SetData(&kSourceSurface, NULL, NULL);
 }
 
 RefPtr<SourceSurface>
 gfxPlatform::GetSourceSurfaceForSurface(DrawTarget *aTarget, gfxASurface *aSurface)
 {
   void *userData = aSurface->GetData(&kSourceSurface);
 
@@ -588,24 +586,19 @@ gfxPlatform::GetSourceSurfaceForSurface(
       }
 
       srcBuffer = Factory::CreateWrappingDataSourceSurface(imgSurface->Data(),
                                                            imgSurface->Stride(),
                                                            size, format);
 
     }
 
-    cairo_surface_t *nullSurf =
-	cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA);
-    cairo_surface_set_user_data(nullSurf,
-                                &kSourceSurface,
-                                imgSurface,
-                                NULL);
-    cairo_surface_attach_snapshot(imgSurface->CairoSurface(), nullSurf, SourceSnapshotDetached);
-    cairo_surface_destroy(nullSurf);
+    cairo_surface_set_mime_data(imgSurface->CairoSurface(), "mozilla/magic",
+                                (const unsigned char *) "data", 4,
+                                SourceSnapshotDetached, imgSurface.get());
   }
 
   srcBuffer->AddRef();
   aSurface->SetData(&kSourceSurface, srcBuffer, SourceBufferDestroy);
 
   return srcBuffer;
 }