Added DIR_METADATA files to a batch of //third_party/ folders

and  removed duplicated metadata from OWNERS files

Bug: 1113033
Change-Id: I51e9d4560200bfe305c4bdbfd6ecdf9c1c78f802
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2573676Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: Norman Rosas <normando@google.com>
Cr-Commit-Position: refs/heads/master@{#834359}

third_party/Python-Markdown/DIR_METADATA

+monorail {
+  component: "Tools"
+}

third_party/Python-Markdown/OWNERS

 dpranke@google.com
 nodir@chromium.org
-# COMPONENT: Tools

third_party/SPIRV-Tools/DIR_METADATA

+monorail {
+  component: "Internals>GPU>Internals"
+}
+
+team_email: "graphics-dev@chromium.org"

third_party/SPIRV-Tools/OWNERS

 vmiura@chromium.org
 dsinclair@chromium.org
-
-# COMPONENT: Internals>GPU>Internals
-# TEAM: graphics-dev@chromium.org

third_party/abseil-cpp/DIR_METADATA

+monorail {
+  component: "Internals>Core"
+}

third_party/abseil-cpp/OWNERS

 danilchap@chromium.org
 kwiberg@chromium.org
 mbonadei@chromium.org
-
-# COMPONENT: Internals>Core

third_party/adobe/DIR_METADATA

+monorail {
+  component: "Internals>Plugins>Flash"
+}

third_party/adobe/OWNERS

@@ -2,5 +2,3 @@ cpu@chromium.org
 jschuh@chromium.org
 raymes@chromium.org
 viettrungluu@chromium.org
-
-# COMPONENT: Internals>Plugins>Flash

third_party/afl/DIR_METADATA

+monorail {
+  component: "Tools>Stability>AFL"
+}
+
+team_email: "chrome-security-bugs--@chromium.org"

third_party/afl/OWNERS

@@ -2,5 +2,3 @@ inferno@chromium.org
 kcc@chromium.org
 metzman@chromium.org
 ochang@chromium.org
-# COMPONENT: Tools>Stability>AFL
-# TEAM: chrome-security-bugs--@chromium.org

third_party/apple_apsl/DIR_METADATA

+monorail {
+  component: "Internals"
+}

third_party/apple_apsl/OWNERS

 avi@chromium.org
 mark@chromium.org
-# COMPONENT: Internals

third_party/arcore-android-sdk-client/DIR_METADATA

+monorail {
+  component: "Internals>XR>AR"
+}
+
+team_email: "xr-dev@chromium.org"
+
+os: ANDROID

third_party/arcore-android-sdk-client/OWNERS

 bialpio@chromium.org
 klausw@chromium.org
-
-# TEAM: xr-dev@chromium.org
-# COMPONENT: Internals>XR>AR
-# OS: Android

third_party/ashmem/DIR_METADATA

+monorail {
+  component: "Internals>Core"
+}

third_party/ashmem/OWNERS

 digit@chromium.org
-
-# COMPONENT: Internals>Core

third_party/axe-core/DIR_METADATA

+monorail {
+  component: "UI>Accessibility"
+}

third_party/axe-core/OWNERS

 aboxhall@chromium.org
 hcarmona@chromium.org
-# COMPONENT: UI>Accessibility

third_party/bazel/DIR_METADATA

+monorail {
+  component: "Build"
+}
+
+team_email: "build@chromium.org"

third_party/bazel/OWNERS

 agrieve@chromium.org
 wnwen@chromium.org
-
-# TEAM: build@chromium.org
-# COMPONENT: Build

third_party/blanketjs/DIR_METADATA

+monorail {
+  component: "Internals"
+}
+
+team_email: "chromium-dev@chromium.org"

third_party/blanketjs/OWNERS

 jamiewalch@chromium.org
-# COMPONENT: Internals
-# TEAM: chromium-dev@chromium.org