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Bug 1499758 - Fix potential null pointer deref in WebGLContext::GetVRFrame r=jgilbert

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Differential Revision: https://phabricator.services.mozilla.com/D12480

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Imanol Fernandez 2018-11-21 10:34:52 +00:00
parent 00d2226d66
commit 5eb9ef2267
1 changed files with 3 additions and 3 deletions
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6
dom/canvas/WebGLContext.cpp
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@ -2328,6 +2328,9 @@ WebGLContext::GetVRFrame()
already_AddRefed<layers::SharedSurfaceTextureClient>
WebGLContext::GetVRFrame()
{
if (!gl)
return nullptr;
EnsureVRReady();
/**
* Swap buffers as though composition has occurred.
@ -2337,9 +2340,6 @@ WebGLContext::GetVRFrame()
BeginComposition();
EndComposition();
if (!gl)
return nullptr;
gl::GLScreenBuffer* screen = gl->Screen();
if (!screen)
return nullptr;