cc/trees/single_thread_proxy.cc - Issue 60513007: Add SwapPromise support to LayerTreeHost and LayerTreeImpl

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Unified Diff: cc/trees/single_thread_proxy.cc

Issue 60513007: Add SwapPromise support to LayerTreeHost and LayerTreeImpl (Closed) Base URL: http://git.chromium.org/chromium/src.git@master

Patch Set: Add comments for when to use QueueSwapPromise() Created 7 years, 1 month ago

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Index: cc/trees/single_thread_proxy.cc

diff --git a/cc/trees/single_thread_proxy.cc b/cc/trees/single_thread_proxy.cc

index 9de0fdd8d85d4dcd56686de2cd599ffaf1266559..4a0ca66da591a2063228bc1067c26ed1d0d5d8f3 100644

--- a/cc/trees/single_thread_proxy.cc

+++ b/cc/trees/single_thread_proxy.cc

@@ -377,7 +377,11 @@ void SingleThreadProxy::CompositeImmediately(base::TimeTicks frame_begin_time) {

// the swap buffers will execute first.

BlockingTaskRunner::CapturePostTasks blocked;

- layer_tree_host_impl_->SwapBuffers(frame);

+ bool did_swap = layer_tree_host_impl_->SwapBuffers(frame);

+ if (did_swap)

+ layer_tree_host_impl_->active_tree()->FinishSwapPromise();

+ else

+ layer_tree_host_impl_->active_tree()->BreakSwapPromise("DID NOT SWAP");

}

DidSwapFrame();

}