Move MediaController.java upstream to Chromium repository.

third_party/android_media/README.chromium

Index: third_party/android_media/README.chromium
diff --git a/third_party/android_media/README.chromium b/third_party/android_media/README.chromium
new file mode 100644
index 0000000000000000000000000000000000000000..dd70b9b12a55337e46f426007db68a5c31b9939d
--- /dev/null
+++ b/third_party/android_media/README.chromium
@@ -0,0 +1,18 @@
+Name: Android Open Source Project
+URL: https://android.googlesource.com/platform/packages/apps/Settings/
+Version: unknown

[Ryan Sleevi, 2015/03/17 10:12:44]

What githash did you check these out at? Include that here.

[aberent, 2015/03/17 20:51:09]

Done.

+License: Apache 2.0
+Security Critical: yes
+
+Description:
+This contains a modified copies of a couple of Java source files related to
+casting media to remote devices, and the associated resources.
+ChromeMediaRouteControllerDialog.java is derived from
+MediaRouteControllerDialog.java in the AOSP.
+MediaController.java is based on a public supportv4 android sample.

[Ryan Sleevi, 2015/03/17 10:12:44]

Link to sample? How can we diff this from upstream? Where even is upstream? What
if there are more minor bug fixes?

[aberent, 2015/03/17 20:51:09]

Link to sample added. This is the upstream version, downstream (Clank) version
is
https://cs.corp.google.com/#clank/java/apps/chrome/src/com/google/android/app....
Any future bug fixes will be done here, since the downstream version will be
removed once this and https://codereview.chromium.org/928643003/ land.

+
+
+Local Modifications:
+ChromeMediaRouteControllerDialog.java has been modified to support a disconnect
+listener
+The only changes to MediaController.java are some minor bug fixes.