Pepper: add PPB interfaces that are missing in histograms.xml.

Pepper: add PPB interfaces that are missing in histograms.xml.
Modifies pepper_hash_for_uma to sort the output by hash, so it's
easier to compare against the histogram.xml file when searching
for missing hashes.

I used the following script to get an API list from src/ppapi:

grep -r "PPB_" ppapi/c | grep -o "\".*;[0-9]\.[0-9]*\"" | tr '\n' ' '

BUG=
R=asvitkine@chromium.org, dmichael@chromium.org

Committed: https://chromium.googlesource.com/chromium/src/+/690ee0925156eb829f87f6078f0467e5efbeed49

[bbudge, 2015-02-25 22:03:30]

bbudge@chromium.org changed reviewers:
+ asvitkine@chromium.org, dmichael@chromium.org

[bbudge, 2015-02-25 22:03:30]

+asvitkine for histograms

[Alexei Svitkine (slow), 2015-02-25 22:14:21]

lgtm % nits

https://codereview.chromium.org/938283004/diff/1/ppapi/tools/pepper_hash_for_...
File ppapi/tools/pepper_hash_for_uma.cc (right):

https://codereview.chromium.org/938283004/diff/1/ppapi/tools/pepper_hash_for_...
ppapi/tools/pepper_hash_for_uma.cc:10: // ppapi/proxy/interface_list.cc.
Nit: Can you add a comment about the command-line you use to run this?

i.e.

grep -r "PPB_" ppapi/c | grep -o "\".*;[0-9]\.[0-9]*\"" | tr '\n' ' '

https://codereview.chromium.org/938283004/diff/1/ppapi/tools/pepper_hash_for_...
ppapi/tools/pepper_hash_for_uma.cc:41: for ( auto &hash : hashes ) {
Nit: Per chromium format:

for (const auto& hash : hashes)

[dmichael (off chromium), 2015-02-25 23:13:31]

lgtm with Alexei's comments.

Thanks!

[bbudge, 2015-02-26 00:13:57]

https://codereview.chromium.org/938283004/diff/1/ppapi/tools/pepper_hash_for_...
File ppapi/tools/pepper_hash_for_uma.cc (right):

https://codereview.chromium.org/938283004/diff/1/ppapi/tools/pepper_hash_for_...
ppapi/tools/pepper_hash_for_uma.cc:10: // ppapi/proxy/interface_list.cc.
On 2015/02/25 22:14:21, Alexei Svitkine wrote:
> Nit: Can you add a comment about the command-line you use to run this?
> 
> i.e.
> 
> grep -r "PPB_" ppapi/c | grep -o "\".*;[0-9]\.[0-9]*\"" | tr '\n' ' '

Done.

https://codereview.chromium.org/938283004/diff/1/ppapi/tools/pepper_hash_for_...
ppapi/tools/pepper_hash_for_uma.cc:41: for ( auto &hash : hashes ) {
On 2015/02/25 22:14:21, Alexei Svitkine wrote:
> Nit: Per chromium format:
> 
> for (const auto& hash : hashes)

Done.

[bbudge, 2015-02-26 00:14:59]

The CQ bit was checked by bbudge@chromium.org

[bbudge, 2015-02-26 00:15:02]

The patchset sent to the CQ was uploaded after l-g-t-m from
dmichael@chromium.org, asvitkine@chromium.org
Link to the patchset: https://codereview.chromium.org/938283004/#ps20001 (title:
"Address review comments.")

[commit-bot: I haz the power, 2015-02-26 00:16:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/938283004/20001

[commit-bot: I haz the power, 2015-02-26 00:18:34]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-26 00:18:35]

Try jobs failed on following builders:
  ios_rel_device_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ng...)
  ios_rel_device_ninja_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)

[bbudge, 2015-02-26 01:26:21]

The CQ bit was checked by bbudge@chromium.org

[commit-bot: I haz the power, 2015-02-26 01:26:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/938283004/20001

[commit-bot: I haz the power, 2015-02-26 01:28:11]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-26 01:28:12]

Try jobs failed on following builders:
  ios_rel_device_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ng...)
  ios_rel_device_ninja_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)

[commit-bot: I haz the power, 2015-02-26 01:34:04]

Patchset 2 (id:??) landed as
https://crrev.com/690ee0925156eb829f87f6078f0467e5efbeed49
Cr-Commit-Position: refs/heads/master@{#318170}

[bbudge, 2015-02-26 01:34:14]

Committed patchset #2 (id:20001) manually as
690ee0925156eb829f87f6078f0467e5efbeed49 (presubmit successful).