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dalecurtis authored
This speeds up seek and suspend significantly in the case of a hung read; on slow networks this may shave hundreds of milliseconds or more off the seek and suspend times. Notably this also resolves a CHECK() crash for overlapping reads by aborting any existing reads when a new read comes in. Note: Also removes some log spam from canceled reads / tests. BUG=165762,638018 TEST=manual, new unittests Review-Url: https://codereview.chromium.org/2267963002 Cr-Commit-Position: refs/heads/master@{#415401}
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