Bug 1330286 - Part 2. Check mContentBackend instead of mPreferredCanvasBackend. r=mstange

MozReview-Commit-ID: 9Cg1c6PjYeO

--HG--
extra : rebase_source : 275ad66f9f2345e7203282c5e34f9d49d1ffbccb
This commit is contained in:
cku 2017-01-13 00:39:24 +08:00
parent 133f456101
commit 7b7952b0a5

View File

@ -1447,7 +1447,7 @@ gfxPlatform::CreateOffscreenCanvasDrawTarget(const IntSize& aSize, SurfaceFormat
already_AddRefed<DrawTarget>
gfxPlatform::CreateOffscreenContentDrawTarget(const IntSize& aSize, SurfaceFormat aFormat)
{
NS_ASSERTION(mPreferredCanvasBackend != BackendType::NONE, "No backend.");
NS_ASSERTION(mContentBackend != BackendType::NONE, "No backend.");
return CreateDrawTargetForBackend(mContentBackend, aSize, aFormat);
}