Reland: Run mojo unit tests on the Android main waterfall.

testing/buildbot/chromium.linux.json

 {
   "Android GN": {
     "additional_compile_targets": [
       "chrome_shell_apk",
       "mandoline:all"
     ],
     "gtest_tests": [
       {
+        "test": "html_viewer_unittests"
+      },
+      {
+        "test": "ipc_mojo_unittests"
+      },
+      {
         "test": "mojo_common_unittests"
+      },
+      {
+        "test": "mojo_public_application_unittests"
+      },
+      {
+        "test": "mojo_public_bindings_unittests"
+      },
+      {
+        "test": "mojo_public_environment_unittests"
+      },
+      {
+        "test": "mojo_public_system_unittests"
+      },
+      {
+        "test": "mojo_public_utility_unittests"
+      },
+      {
+        "test": "mojo_runner_unittests"
+      },
+      {
+        "test": "mojo_shell_unittests"
+      },
+      {
+        "test": "mojo_surfaces_lib_unittests"
+      },
+      {
+        "test": "mojo_system_unittests"
+      },
+      {
+        "test": "mojo_view_manager_lib_unittests"
+      },
+      {
+        "test": "resource_provider_unittests"
+      },
+      {
+        "test": "view_manager_unittests"
       }
     ]
   },
   "Android GN (dbg)": {
     "additional_compile_targets": [
       "chrome_shell_apk",
       "mandoline:all"
     ]
   },
   "Android Tests": {
@@ skipping 1177 matching lines @@
       }
     ],
     "scripts": [
       {
         "name": "nacl_integration",
         "script": "nacl_integration.py"
       }
     ]
   }
 }