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Side by Side Diff: cc/base/swap_promise.h

Issue 365463003: Implement scroll handler latency tracking (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebased. Created 6 years, 4 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CC_BASE_SWAP_PROMISE_H_ 5 #ifndef CC_BASE_SWAP_PROMISE_H_
6 #define CC_BASE_SWAP_PROMISE_H_ 6 #define CC_BASE_SWAP_PROMISE_H_
7 7
8 #include "cc/output/compositor_frame_metadata.h" 8 #include "cc/output/compositor_frame_metadata.h"
9 9
10 namespace cc { 10 namespace cc {
(...skipping 23 matching lines...) Expand all
34 SWAP_FAILS, 34 SWAP_FAILS,
35 COMMIT_FAILS, 35 COMMIT_FAILS,
36 COMMIT_NO_UPDATE, 36 COMMIT_NO_UPDATE,
37 }; 37 };
38 38
39 SwapPromise() {} 39 SwapPromise() {}
40 virtual ~SwapPromise() {} 40 virtual ~SwapPromise() {}
41 41
42 virtual void DidSwap(CompositorFrameMetadata* metadata) = 0; 42 virtual void DidSwap(CompositorFrameMetadata* metadata) = 0;
43 virtual void DidNotSwap(DidNotSwapReason reason) = 0; 43 virtual void DidNotSwap(DidNotSwapReason reason) = 0;
44
45 // A non-zero trace id identifies a trace flow object that is embedded in the
46 // swap promise. This can be used for registering additional flow steps to
47 // visualize the object's path through the system.
48 virtual int64 TraceId() const = 0;
44 }; 49 };
45 50
46 } // namespace cc 51 } // namespace cc
47 52
48 #endif // CC_BASE_SWAP_PROMISE_H_ 53 #endif // CC_BASE_SWAP_PROMISE_H_
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