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| author | joi@chromium.org <joi@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-05-10 17:18:53 +0000 |
|---|---|---|
| committer | joi@chromium.org <joi@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-05-10 17:18:53 +0000 |
| commit | edafd4c1a5c906e808e2448810e2099d8dc704b9 (patch) | |
| tree | 4ccc930c0b9ff8663183ebb6333e9ac990f0e491 /base/rand_util.h | |
| parent | 063bb25a11a9258c44d61210dfd98f41e7b4f24a (diff) | |
| download | chromium_src-edafd4c1a5c906e808e2448810e2099d8dc704b9.zip chromium_src-edafd4c1a5c906e808e2448810e2099d8dc704b9.tar.gz chromium_src-edafd4c1a5c906e808e2448810e2099d8dc704b9.tar.bz2 | |
Add one-time randomization support for FieldTrial, and the ability to
disable field trials. I am going to have a need for both soon.
Update some documentation about empty trial names, add TrialExists() method and update many call-sites to use this (it simplifies the previous logic which checked for existence and then for non-empty name, which can no longer happen).
Refactor a bit in browser_main.
While I'm in there and needing base/OWNERS approval, add an OWNERS
file for base/metrics that adds jar@chromium.org as an owner for that
directory.
Initially committed as r84197.
Rolled back due to DCHECK in official builds, r84373.
Will re-submit with fix.
BUG=81750
TEST=base_unittests
Review URL: http://codereview.chromium.org/6883102
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@84801 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/rand_util.h')
| -rw-r--r-- | base/rand_util.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/base/rand_util.h b/base/rand_util.h index 541fd77..6bfbcb4 100644 --- a/base/rand_util.h +++ b/base/rand_util.h @@ -29,6 +29,10 @@ BASE_API uint64 RandGenerator(uint64 max); // Returns a random double in range [0, 1). Thread-safe. BASE_API double RandDouble(); +// Given input |bits|, convert with maximum precision to a double in +// the range [0, 1). Thread-safe. +BASE_API double BitsToOpenEndedUnitInterval(uint64 bits); + // Fills |output_length| bytes of |output| with cryptographically strong random // data. BASE_API void RandBytes(void* output, size_t output_length); |