Add DIR_METADATA files to //gpu

Add Generate DIR_METADATA files and remove metadata from OWNERS
files for //gpu.

R=vmiura@chromium.org

Bug: 1113033
Change-Id: Idd4311b03d41318708b0d260aafc5cb04ffc2ed6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454384Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815404}

gpu/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Internals>GPU>Internals"
+}
\ No newline at end of file

gpu/GLES2/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Internals>GPU>Internals"
+}
\ No newline at end of file

gpu/GLES2/OWNERS

 bajones@chromium.org
 zmo@chromium.org
 vmiura@chromium.org
-
-# COMPONENT: Internals>GPU>Internals

gpu/OWNERS

@@ -14,5 +14,3 @@ per-file *passthrough*=geofflang@chromium.org
 
 # For SharedImages
 vikassoni@chromium.org
-
-# COMPONENT: Internals>GPU>Internals

gpu/command_buffer/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Internals>GPU>Internals"
+}
\ No newline at end of file

gpu/command_buffer/OWNERS

@@ -11,5 +11,3 @@ per-file *gpu_memory_buffer*=dcastagna@chromium.org
 cwallez@chromium.org
 enga@chromium.org
 kainino@chromium.org
-
-# COMPONENT: Internals>GPU>Internals

gpu/config/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Internals>GPU>Internals"
+}
\ No newline at end of file

gpu/config/OWNERS

 kbr@chromium.org
 zmo@chromium.org
-
-# COMPONENT: Internals>GPU>Internals

gpu/vulkan/DIR_METADATA

+# Metadata information for this directory.
+#
+# For more information on DIR_METADATA files, see:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/README.md
+#
+# For the schema of this file, see Metadata message:
+#   https://source.chromium.org/chromium/infra/infra/+/master:go/src/infra/tools/dirmd/proto/dir_metadata.proto
+
+monorail {
+  component: "Internals>GPU>Internals"
+}
\ No newline at end of file

gpu/vulkan/OWNERS

 vmiura@chromium.org
 penghuang@chromium.org
-
-# COMPONENT: Internals>GPU>Internals