[DirectoryOwnership] Add TEAM/COMPONENT into OWNERS files.

We are adding COMPONENT/TEAM information into OWNERS file
(security, etc).

Proposal to add TEAM/COMPONENT information into OWNERS files
http://bit.ly/add-team-component-proposal
Proposal about how to get suggested component for directory.
http://bit.ly/directory-mapping-proposal
TEAM-COMPONENT mapping
http://bit.ly/component-team-mapping

Additional Information:
Component lists
https://bugs.chromium.org/p/chromium/adminComponents

BUG=679905
R=estark@chromium.org

Review-Url: https://codereview.chromium.org/2741833003
Cr-Commit-Position: refs/heads/master@{#456145}

chrome/browser/interstitials/OWNERS

@@ -3,4 +3,6 @@ felt@chromium.org
 mattm@chromium.org
 meacer@chromium.org
 palmer@chromium.org
-rsleevi@chromium.org
+rsleevi@chromium.org
\ No newline at end of file
+
+# COMPONENT: UI>Browser>Interstitials

components/certificate_reporting/OWNERS

 estark@chromium.org
 felt@chromium.org
 palmer@chromium.org
-rsleevi@chromium.org
+rsleevi@chromium.org
\ No newline at end of file
+
+# COMPONENT: Internals>CertAnalysis

components/security_interstitials/OWNERS

@@ -7,3 +7,5 @@ palmer@chromium.org
 
 # For componentization purpose
 jialiul@chromium.org
+
+# COMPONENT: UI>Browser>Interstitials

components/security_state/OWNERS

 estark@chromium.org
 felt@chromium.org
-palmer@chromium.org
+palmer@chromium.org
\ No newline at end of file
+
+# COMPONENT: Internals>PageSecurityState

ios/chrome/browser/ssl/OWNERS

 estark@chromium.org
 felt@chromium.org
+
+# COMPONENT: Security>UX