GitLab

* Renamed print_settings_initializer.* into print_settings_conversion.*
* Dump on FILE thread.
* Added PrintSettingsToJobSettingsDebug to dump PrintSettings.
* Added PrintedDocument::CreateDebugDumpPath for consistent dump file naming.
* Dump PDFs received from renderer process.
* Moved GetCustomMarginsFromJobSettings into print_settings_conversion.cc.
* Moved Parsing PageRanges into print_settings_conversion.*

BUG=379961

Review URL: https://codereview.chromium.org/329683002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276716 0039d316-1c4b-4281-b951-d872f2087c98