Fix android_run_skia to work with multiple attached devices

platform_tools/android/bin/android_run_skia

Index: platform_tools/android/bin/android_run_skia
===================================================================
--- platform_tools/android/bin/android_run_skia	(revision 9137)
+++ platform_tools/android/bin/android_run_skia	(working copy)
@@ -35,13 +35,13 @@
 
 if [[ "$USE_INTENT" == "true" ]];
 then
-    $ADB logcat -c
+    $ADB $SERIAL logcat -c
     $ADB $SERIAL shell am broadcast -a com.skia.intent.action.LAUNCH_SKIA -n com.skia/.SkiaReceiver -e args "$APP_ARGS"
     trap "echo \"Interrupt.\"" INT
-    eval "($ADB logcat)"
+    eval "($ADB $SERIAL logcat)"
     trap - INT
     echo "Interrupt. Killing Skia process..."
-    $SCRIPT_DIR/android_kill_skia
+    $SCRIPT_DIR/android_kill_skia $SERIAL
     echo "Done."
 else
     $ADB $SERIAL shell skia_launcher $APP_ARGS