Don't allow deleting the 0 transform feedback.

BUG=709786 Change-Id: I956cae994241a650869cee45c471074d08e79a5d Reviewed-on: https://chromium-review.googlesource.com/475131Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>

Don't allow deleting the 0 transform feedback.
6e60d6bf · Geoff Lang · Commit Bot · 67f5ce42 · 6e60d6bf
Commit 6e60d6bf authored Apr 12, 2017 by Geoff Lang Committed by Commit Bot Apr 12, 2017
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Context.cpp src/libANGLE/Context.cpp +5 -0

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--- a/src/libANGLE/Context.cpp
+++ b/src/libANGLE/Context.cpp
@@ -813,6 +813,11 @@ void Context::deleteSampler(GLuint sampler)
 void Context::deleteTransformFeedback(GLuint transformFeedback)
 {
+    if (transformFeedback == 0)
+    {
+        return;
+    }
    auto iter = mTransformFeedbackMap.find(transformFeedback);
    if (iter != mTransformFeedbackMap.end())
    {