tree 11f1aa4b74beca3f97ec3b4ee98a33c3f1dc41a8
parent 6e09d875fb28e49029fac798382e2c8df4a1f752
author eladalon <eladalon@webrtc.org> 1504179365 -0700
committer Commit Bot <commit-bot@chromium.org> 1504179365 +0000

Allow PostTask() to take unique_ptr to classes derived of QueuedTask

Problem fixed by this CL: Let DerivedQueuedTask be a custom derivation of QueuedTask. Calling PostTask() with a std::unique_ptr<DerivedQueuedTask> does not work, because overload resolution sees PostTask(const Closure& closure) as a better match. The workaround of explicitly converting to std::unique_ptr<QueuedTask> before calling PostTask() results in less readable code.

Solution: Use std::enable_if to limit the template, thereby making the compiler use the right version of PostTask().

BUG=webrtc:8188

Review-Url: https://codereview.webrtc.org/3006933002
Cr-Commit-Position: refs/heads/master@{#19625}