[grdb screen shots] Add owners files for *_grdp in components.

This CL adds OWNERS files for components/*_grdp/ directories where the
components/OWNERS file had a clear owner for the corresponding
components/*.grdp file.

Bug: None
Change-Id: I99e80c3fe39809d4b64570cbc359a4c835ad3952
Reviewed-on: https://chromium-review.googlesource.com/1045171
Commit-Queue: Dave Schuyler <[email protected]>
Reviewed-by: Cait Phillips <[email protected]>
Cr-Commit-Position: refs/heads/master@{#556896}
diff --git a/components/browsing_data_strings_grdp/README.md b/components/browsing_data_strings_grdp/README.md
new file mode 100644
index 0000000..119d8b9
--- /dev/null
+++ b/components/browsing_data_strings_grdp/README.md
@@ -0,0 +1,5 @@
+This directory of image SHA-1 hashes is used to improve translations of UI
+strings through context images for translators.
+
+See also: [Chrome Translation Screenshots - Instructions & FAQ
+](https://docs.google.com/document/d/1nwYWDny20icMSpLUuV_LgrlbWKrYpbXOERUIZNH636o/edit#heading=h.2t7lc4cxo2au)