CTPPS: Small memory footprint reduction for the channels mapping handler

[forthommel]

Forward-port of a single commit to keep in sync with the review of the 8_0_X branch of #18734 (#18732).

Save twice an allocation of shared pointers using the make_shared statement

runTheMatrix.py yielded 17 17 16 14 7 1 1 1 tests passed, 1 0 0 0 0 0 0 0 failed (usual DAS failure of 4.22)

[cmsbuild]

A new Pull Request was created by @forthommel (Laurent Forthomme) for master.

It involves the following packages:

CondFormats/CTPPSReadoutObjects

@ghellwig, @arunhep, @cerminar, @cmsbuild, @franzoni, @ggovi, @mmusich, @davidlange6 can you please review it and eventually sign? Thanks.
@ghellwig, @tocheng this is something you requested to watch as well.
@davidlange6 you are the release manager for this.

cms-bot commands are listed here

[ghellwig]

please test

[ghellwig]

+1

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/19956/console Started: 2017/05/18 09:26

[cmsbuild]

+1
Tested at: 120f8b2
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-18815/19956/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-18815/19956/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 1715 differences found in the comparisons
• DQMHistoTests: Total files compared: 24
• DQMHistoTests: Total histograms compared: 1833935
• DQMHistoTests: Total failures: 38669
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 1795086
• DQMHistoTests: Total skipped: 180
• DQMHistoTests: Total Missing objects: 0
• Checked 98 log files, 14 edm output root files, 24 DQM output files

[davidlange6]

hi @forthommel - please change the title to be descriptive of the changes for the release notes - thanks