Cache feedback reports to disk in case of send failure.

R=zork@chromium.org
BUG=249853

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=246992

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=247772

Review URL: https://codereview.chromium.org/141433011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248648 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248648
Make chrome_dll_pdb_workaround only be used for non-shared library builds. It originally got added to fix a bug for that configuration, but was added for all configs. With VS2013, this seems to be happening frequently on my machine.

BUG=170186,339215
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/140133007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248649 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 248649