Revert "Remove 'mojo_' prefix from all mojo applications."

mojo/services/view_manager/BUILD.gn

Index: mojo/services/view_manager/BUILD.gn
diff --git a/mojo/services/view_manager/BUILD.gn b/mojo/services/view_manager/BUILD.gn
index 2ff8c59428c23cf08b91373da2c7f7435ba7efe0..1d9c78b4dd62920c80e3c0662f9caa9f4e0572cc 100644
--- a/mojo/services/view_manager/BUILD.gn
+++ b/mojo/services/view_manager/BUILD.gn
@@ -6,6 +6,8 @@ import("//build/config/ui.gni")
 
 # GYP version: mojo/mojo_services.gypi:mojo_view_manager
 shared_library("view_manager") {
+  output_name = "mojo_view_manager"
+
   deps = [
     "//base",
     "//cc/surfaces",
@@ -57,7 +59,7 @@ shared_library("view_manager") {
 }
 
 # GYP version: mojo/mojo_services.gypi:mojo_view_manager_unittests
-test("view_manager_unittests") {
+test("mojo_view_manager_unittests") {
   deps = [
     ":view_manager",
     "//base",