M57: Properly clean up in PrintViewManager::RenderFrameCreated().

BUG=694382,698622

Review-Url: https://codereview.chromium.org/2742853003
Cr-Commit-Position: refs/heads/master@{#457363}
(cherry picked from commit 746da1cc6b2fbc2f725934542eedc49b41e5f17b)

Review-Url: https://codereview.chromium.org/2775133002 .
Cr-Commit-Position: refs/branch-heads/2987@{#881}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
3 files changed