Initial support to test.dart for running precompiler tests on android devices

tools/testing/dart/runtime_configuration.dart

Index: tools/testing/dart/runtime_configuration.dart
diff --git a/tools/testing/dart/runtime_configuration.dart b/tools/testing/dart/runtime_configuration.dart
index 71913427ccdc30dd2f90a7c9dc897087a4aae1b5..b8e9e3d78a33333d3ba7fefbd4caedff7bba0709 100644
--- a/tools/testing/dart/runtime_configuration.dart
+++ b/tools/testing/dart/runtime_configuration.dart
@@ -54,6 +54,9 @@ class RuntimeConfiguration {
         return new DartProductRuntimeConfiguration();
 
       case 'dart_precompiled':
+        if (configuration['system'] == 'android') {
+          return new DartPrecompiledAdbRuntimeConfiguration(useBlobs: useBlobs);
+        }
         return new DartPrecompiledRuntimeConfiguration(useBlobs: useBlobs);
 
       case 'drt':
@@ -275,6 +278,32 @@ class DartPrecompiledRuntimeConfiguration extends DartVmRuntimeConfiguration {
   }
 }
 
+class DartPrecompiledAdbRuntimeConfiguration
+      extends DartVmRuntimeConfiguration {
+  final bool useBlobs;
+  DartPrecompiledAdbRuntimeConfiguration({bool useBlobs}) : useBlobs = useBlobs;
+
+  List<Command> computeRuntimeCommands(
+      TestSuite suite,
+      CommandBuilder commandBuilder,
+      CommandArtifact artifact,
+      List<String> arguments,
+      Map<String, String> environmentOverrides) {
+    String script = artifact.filename;
+    String type = artifact.mimeType;
+    if (script != null && type != 'application/dart-precompiled') {
+      throw "dart_precompiled cannot run files of type '$type'.";
+    }
+
+    String precompiledRunner = suite.dartPrecompiledBinaryFileName;
+    return <Command>[
+      commandBuilder.getAdbPrecompiledCommand(precompiledRunner,
+                                              script,
+                                              useBlobs)
+    ];
+  }
+}
+
 /// Temporary runtime configuration for browser runtimes that haven't been
 /// migrated yet.
 // TODO(ahe): Remove this class.