diff --git a/libs/gui/tests/GLTest.cpp b/libs/gui/tests/GLTest.cpp
index 1739d9c..a91552f 100644
--- a/libs/gui/tests/GLTest.cpp
+++ b/libs/gui/tests/GLTest.cpp
@@ -22,6 +22,8 @@
 
 namespace android {
 
+using Transaction = SurfaceComposerClient::Transaction;
+
 static int abs(int value) {
     return value > 0 ? value : -value;
 }
@@ -68,10 +70,10 @@
         ASSERT_TRUE(mSurfaceControl != NULL);
         ASSERT_TRUE(mSurfaceControl->isValid());
 
-        SurfaceComposerClient::openGlobalTransaction();
-        ASSERT_EQ(NO_ERROR, mSurfaceControl->setLayer(0x7FFFFFFF));
-        ASSERT_EQ(NO_ERROR, mSurfaceControl->show());
-        SurfaceComposerClient::closeGlobalTransaction();
+        Transaction t;
+        ASSERT_EQ(NO_ERROR, t.setLayer(mSurfaceControl, 0x7FFFFFFF)
+                .show(mSurfaceControl)
+                .apply());
 
         sp<ANativeWindow> window = mSurfaceControl->getSurface();
         mEglSurface = createWindowSurface(mEglDisplay, mGlConfig, window);
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 45e95a5..bfcd75f 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -42,6 +42,8 @@
 using namespace android::hardware::configstore;
 using namespace android::hardware::configstore::V1_0;
 
+using Transaction = SurfaceComposerClient::Transaction;
+
 static bool hasWideColorDisplay =
         getBool<ISurfaceFlingerConfigs, &ISurfaceFlingerConfigs::hasWideColorDisplay>(false);
 
@@ -69,10 +71,10 @@
         ASSERT_TRUE(mSurfaceControl != NULL);
         ASSERT_TRUE(mSurfaceControl->isValid());
 
-        SurfaceComposerClient::openGlobalTransaction();
-        ASSERT_EQ(NO_ERROR, mSurfaceControl->setLayer(0x7fffffff));
-        ASSERT_EQ(NO_ERROR, mSurfaceControl->show());
-        SurfaceComposerClient::closeGlobalTransaction();
+        Transaction t;
+        ASSERT_EQ(NO_ERROR, t.setLayer(mSurfaceControl, 0x7fffffff)
+                .show(mSurfaceControl)
+                .apply());
 
         mSurface = mSurfaceControl->getSurface();
         ASSERT_TRUE(mSurface != NULL);