Add finer-grained owners files

Source/core/OWNERS

Index: Source/core/OWNERS
diff --git a/Source/core/OWNERS b/Source/core/OWNERS
index 9c29240cfa2513f5c46b076889602262fd3b29c9..71d395c4bb37e4e6795dc40eb8b4e26e9795521b 100644
--- a/Source/core/OWNERS
+++ b/Source/core/OWNERS
@@ -1,3 +1,7 @@
+# Please prefer to use more specific OWNERS if possible.
+# For example, core/rendering/OWNERS for rendering changes.
+
+# Reviewers (comments indicate areas of expertise):
 abarth@chromium.org
 adamk@chromium.org
 ager@chromium.org
@@ -5,14 +9,10 @@ alexis.menard@intel.com
 apavlov@chromium.org
 arv@chromium.org
 chrishtr@chromium.org
-darin@chromium.org
 dcheng@chromium.org
 dglazkov@chromium.org
-dimich@chromium.org
-dmazzoni@chromium.org
 dominicc@chromium.org
 dpranke@chromium.org
-dschulze@chromium.org
 dstockwell@chromium.org
 eae@chromium.org
 enne@chromium.org
@@ -20,7 +20,6 @@ eseidel@chromium.org
 esprehn@chromium.org
 fmalita@chromium.org
 fs@opera.com
-hamaji@chromium.org
 haraken@chromium.org
 hayato@chromium.org
 inferno@chromium.org
@@ -35,11 +34,11 @@ keishi@chromium.org
 kenneth.r.christiansen@intel.com
 kinuko@chromium.org
 kouhei@chromium.org
-levin@chromium.org
 leviw@chromium.org
 mkwst@chromium.org
 morrita@chromium.org
 ojan@chromium.org
+# pdr reviews many svg and text autosizing patches.
 pdr@chromium.org
 pfeldman@chromium.org
 philipj@opera.com
@@ -60,3 +59,12 @@ vsevik@chromium.org
 yoav@yoav.ws
 yurys@chromium.org
 yutak@chromium.org
+
+# Just owners:
+darin@chromium.org

[eseidel, 2014/10/06 19:16:16]

I doubt darin@ will complain if you remove him.  He has plenty of ways to get
code into Blink if he needs.

+
+# Owners emeritus:

[eseidel, 2014/10/06 19:16:16]

Just remove these, we can always add them back later.

[leviw_travelin_and_unemployed, 2014/10/06 19:27:03]

I believe he was mostly attempting to avoid a bikeshedding discussion about
removing old owners.

[pdr., 2014/10/10 02:56:26]

Yeah, this is the case. I think it would be healthy to prune the list but I
didn't want to mix these issues.

+levin@chromium.org
+dimich@chromium.org
+dschulze@chromium.org
+hamaji@chromium.org