[android] Convert linker tests to platform mode.

build/android/pylib/base/test_run_factory.py

Index: build/android/pylib/base/test_run_factory.py
diff --git a/build/android/pylib/base/test_run_factory.py b/build/android/pylib/base/test_run_factory.py
index 0d71e97fb2c0b1b985d591906269f4d1c065effb..1a2872819d9c2fd09551f1017a320cb7a8e147e2 100644
--- a/build/android/pylib/base/test_run_factory.py
+++ b/build/android/pylib/base/test_run_factory.py
@@ -5,10 +5,12 @@
 from pylib.gtest import gtest_test_instance
 from pylib.instrumentation import instrumentation_test_instance
 from pylib.junit import junit_test_instance
+from pylib.linker import linker_test_instance
 from pylib.monkey import monkey_test_instance
 from pylib.local.device import local_device_environment
 from pylib.local.device import local_device_gtest_run
 from pylib.local.device import local_device_instrumentation_test_run
+from pylib.local.device import local_device_linker_test_run
 from pylib.local.device import local_device_monkey_test_run
 from pylib.local.device import local_device_perf_test_run
 from pylib.local.machine import local_machine_environment
@@ -35,6 +37,9 @@ def CreateTestRun(args, env, test_instance, error_func):
                   instrumentation_test_instance.InstrumentationTestInstance):
       return (local_device_instrumentation_test_run
               .LocalDeviceInstrumentationTestRun(env, test_instance))
+    if isinstance(test_instance, linker_test_instance.LinkerTestInstance):
+      return (local_device_linker_test_run
+              .LocalDeviceLinkerTestRun(env, test_instance))
     if isinstance(test_instance, monkey_test_instance.MonkeyTestInstance):
       return (local_device_monkey_test_run
               .LocalDeviceMonkeyTestRun(env, test_instance))