GeoLocation: add support for GmsCore location provider

device/BUILD.gn

Index: device/BUILD.gn
diff --git a/device/BUILD.gn b/device/BUILD.gn
index 1542a8730e20aa58f57467525a50c454c68d020d..6f9f35d0397d30d969ba13bcb27b1a8b479dd477 100644
--- a/device/BUILD.gn
+++ b/device/BUILD.gn
@@ -300,6 +300,7 @@ if (is_android) {
     java_files = [
       "gamepad/android/junit/src/org/chromium/device/gamepad/GamepadMappingsTest.java",
       "generic_sensor/android/junit/src/org/chromium/device/sensors/PlatformSensorAndProviderTest.java",
+      "geolocation/android/junit/src/org/chromium/device/geolocation/LocationProviderTest.java",
       "nfc/android/junit/src/org/chromium/device/nfc/NFCTest.java",
     ]
     deps = [
@@ -308,10 +309,13 @@ if (is_android) {
       "//device/gamepad:java",
       "//device/generic_sensor:java",
       "//device/generic_sensor/public/interfaces:interfaces_java",
+      "//device/geolocation:geolocation_java",
+      "//device/geolocation:geolocation_java_test_support",
       "//device/nfc:mojo_bindings_java",
       "//device/nfc/android:java",
       "//mojo/public/java:bindings_java",
       "//third_party/android_tools:android_support_annotations_java",
+      google_play_services_library,

[agrieve, 2017/04/20 15:22:23]

nit: please use "google_play_services_package" rather than depending on all gms
libraries here:
https://cs.chromium.org/chromium/src/build/config/android/config.gni?type=cs&...

[mcasas, 2017/04/20 18:59:32]

That didn't work exactly for me, so instead I'm relying
directly on the appropriate 

"//third_party/android_tools:google_play_services_*_java"

please instruct :-)

     ]
     srcjar_deps = [ "//device/gamepad:java_enums_srcjar" ]
   }