Add "Remove OwnPtr from Blink" to git hyper-blame ignore list.

BUG=582354

Review-Url: https://codereview.chromium.org/2099113002
Cr-Commit-Position: refs/heads/master@{#402118}

diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 8316320..fc799289 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs

@@ -335,5 +335,9 @@
 
 # Move code in ui/gl/* from gfx:: to gl::
 7a4638457b6cb7ba351c57b98f1871209604cb81
+
+# Remove OwnPtr from Blink.
+f5f08765522594f41a1c032754e4fbc30e90c134
+
 # clang-format all of //ash
 b8dcef526018a47e7cd985cef724c464d0d958a6