/usr/share/civicrm/CRM/Case/ is in civicrm-common 4.7.1+dfsg-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/civicrm/CRM/Case/Audit/
/usr/share/civicrm/CRM/Case/Audit/Audit.php
/usr/share/civicrm/CRM/Case/Audit/AuditConfig.php
/usr/share/civicrm/CRM/Case/Audit/audit.conf.xml
/usr/share/civicrm/CRM/Case/BAO/
/usr/share/civicrm/CRM/Case/BAO/Case.php
/usr/share/civicrm/CRM/Case/BAO/CaseContact.php
/usr/share/civicrm/CRM/Case/BAO/CaseType.php
/usr/share/civicrm/CRM/Case/BAO/Query.php
/usr/share/civicrm/CRM/Case/Controller/
/usr/share/civicrm/CRM/Case/Controller/Search.php
/usr/share/civicrm/CRM/Case/DAO/
/usr/share/civicrm/CRM/Case/DAO/Case.php
/usr/share/civicrm/CRM/Case/DAO/CaseActivity.php
/usr/share/civicrm/CRM/Case/DAO/CaseContact.php
/usr/share/civicrm/CRM/Case/DAO/CaseType.php
/usr/share/civicrm/CRM/Case/Form/
/usr/share/civicrm/CRM/Case/Form/Activity/
/usr/share/civicrm/CRM/Case/Form/Activity.php
/usr/share/civicrm/CRM/Case/Form/Activity/ChangeCaseStartDate.php
/usr/share/civicrm/CRM/Case/Form/Activity/ChangeCaseStatus.php
/usr/share/civicrm/CRM/Case/Form/Activity/ChangeCaseType.php
/usr/share/civicrm/CRM/Case/Form/Activity/LinkCases.php
/usr/share/civicrm/CRM/Case/Form/Activity/OpenCase.php
/usr/share/civicrm/CRM/Case/Form/ActivityToCase.php
/usr/share/civicrm/CRM/Case/Form/ActivityView.php
/usr/share/civicrm/CRM/Case/Form/Case.php
/usr/share/civicrm/CRM/Case/Form/CaseView.php
/usr/share/civicrm/CRM/Case/Form/CustomData.php
/usr/share/civicrm/CRM/Case/Form/EditClient.php
/usr/share/civicrm/CRM/Case/Form/Report.php
/usr/share/civicrm/CRM/Case/Form/Search.php
/usr/share/civicrm/CRM/Case/Form/Task/
/usr/share/civicrm/CRM/Case/Form/Task.php
/usr/share/civicrm/CRM/Case/Form/Task/Delete.php
/usr/share/civicrm/CRM/Case/Form/Task/Print.php
/usr/share/civicrm/CRM/Case/Form/Task/Restore.php
/usr/share/civicrm/CRM/Case/Form/Task/Result.php
/usr/share/civicrm/CRM/Case/Form/Task/SearchTaskHookSample.php
/usr/share/civicrm/CRM/Case/Info.php
/usr/share/civicrm/CRM/Case/ManagedEntities.php
/usr/share/civicrm/CRM/Case/Page/
/usr/share/civicrm/CRM/Case/Page/AJAX.php
/usr/share/civicrm/CRM/Case/Page/CaseDetails.php
/usr/share/civicrm/CRM/Case/Page/DashBoard.php
/usr/share/civicrm/CRM/Case/Page/Tab.php
/usr/share/civicrm/CRM/Case/PseudoConstant.php
/usr/share/civicrm/CRM/Case/Selector/
/usr/share/civicrm/CRM/Case/Selector/Search.php
/usr/share/civicrm/CRM/Case/StateMachine/
/usr/share/civicrm/CRM/Case/StateMachine/Search.php
/usr/share/civicrm/CRM/Case/Task.php
/usr/share/civicrm/CRM/Case/XMLProcessor/
/usr/share/civicrm/CRM/Case/XMLProcessor.php
/usr/share/civicrm/CRM/Case/XMLProcessor/Process.php
/usr/share/civicrm/CRM/Case/XMLProcessor/Report.php
/usr/share/civicrm/CRM/Case/XMLProcessor/Settings.php
/usr/share/civicrm/CRM/Case/XMLRepository.php
/usr/share/civicrm/CRM/Case/xml/
/usr/share/civicrm/CRM/Case/xml/HRD/
/usr/share/civicrm/CRM/Case/xml/HRD/CivilAndPolitical.xml
/usr/share/civicrm/CRM/Case/xml/HRD/EconomicSocialCultural.xml
/usr/share/civicrm/CRM/Case/xml/HRD/GenderIssues.xml
/usr/share/civicrm/CRM/Case/xml/HRD/HRD.mysql
/usr/share/civicrm/CRM/Case/xml/Menu/
/usr/share/civicrm/CRM/Case/xml/Menu/Case.xml
/usr/share/civicrm/CRM/Case/xml/configuration.sample/
/usr/share/civicrm/CRM/Case/xml/configuration.sample/Settings.xml
/usr/share/civicrm/CRM/Case/xml/configuration.sample/adult_day_care_referral.xml
/usr/share/civicrm/CRM/Case/xml/configuration.sample/case_sample.mysql.tpl
/usr/share/civicrm/CRM/Case/xml/configuration.sample/housing_support.xml
/usr/share/civicrm/CRM/Case/xml/samples/
/usr/share/civicrm/CRM/Case/xml/samples/report.xml