Bug 1508822 - Guard against trying to create an oversized DrawTargetRecording with WebRender. r=mstange

Differential Revision: https://phabricator.services.mozilla.com/D12950

--HG--
extra : moz-landing-system : lando

gfx/tests/crashtests/1508822.html

@@ -0,0 +1,5 @@
+<style>
+* { scale: 0.55749 10 1 }
+</style>
+<svg>
+<circle r="49%" mask="url()">

gfx/tests/crashtests/crashtests.list

@@ -175,3 +175,4 @@ load 1501518.html
 load 1503986-1.html
 load 1505426-1.html
 load 1508811.html
+load 1508822.html

layout/svg/nsSVGIntegrationUtils.cpp

@@ -582,6 +582,10 @@ CreateAndPaintMaskSurface(const PaintFramesParams& aParams,
     return paintResult;
   }
 
+  if (!ctx.GetDrawTarget()->CanCreateSimilarDrawTarget(maskSurfaceRect.Size(),
+                                                       SurfaceFormat::A8)) {
+    return paintResult;
+  }
   RefPtr<DrawTarget> maskDT =
       ctx.GetDrawTarget()->CreateSimilarDrawTarget(maskSurfaceRect.Size(),
                                                    SurfaceFormat::A8);