Move native_viewport and gles2 service impls to //services

R=ben@chromium.org

Review URL: https://codereview.chromium.org/769173002
diff --git a/mojo/shell/BUILD.gn b/mojo/shell/BUILD.gn
index ea159b5..c308251 100644
--- a/mojo/shell/BUILD.gn
+++ b/mojo/shell/BUILD.gn
@@ -165,10 +165,10 @@
     deps += [
       ":jni_headers",
       ":run_android_application_function",
-      "//mojo/services/gles2",
-      "//mojo/services/native_viewport:lib",
-      "//mojo/services/network:lib",
       "//mojo/application:content_handler",
+      "//mojo/services/network:lib",
+      "//services/gles2",
+      "//services/native_viewport:lib",
     ]
   }
 
@@ -252,8 +252,8 @@
       ":jni_headers",
       ":lib",
       "//mojo/application_manager",
-      "//mojo/services/native_viewport:lib",
       "//net",
+      "//services/native_viewport:lib",
       "//ui/gl",
     ]
   }
@@ -285,7 +285,7 @@
       ":java",
       ":libmojo_shell",
       ":resources",
-      "//mojo/services/native_viewport:native_viewport_java",
+      "//services/native_viewport:native_viewport_java",
     ]
   }
 }