diff --git a/include/private/gui/ComposerService.h b/include/private/gui/ComposerService.h
new file mode 100644
index 0000000..d04491a
--- /dev/null
+++ b/include/private/gui/ComposerService.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
+#define ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Singleton.h>
+#include <utils/StrongPointer.h>
+
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class IMemoryHeap;
+class ISurfaceComposer;
+class surface_flinger_cblk_t;
+
+// ---------------------------------------------------------------------------
+
+class ComposerService : public Singleton<ComposerService>
+{
+    // these are constants
+    sp<ISurfaceComposer> mComposerService;
+    sp<IMemoryHeap> mServerCblkMemory;
+    surface_flinger_cblk_t volatile* mServerCblk;
+    ComposerService();
+    friend class Singleton<ComposerService>;
+public:
+    static sp<ISurfaceComposer> getComposerService();
+    static surface_flinger_cblk_t const volatile * getControlBlock();
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_PRIVATE_GUI_COMPOSER_SERVICE_H
diff --git a/include/surfaceflinger/SurfaceComposerClient.h b/include/surfaceflinger/SurfaceComposerClient.h
index 8226abe..99affda 100644
--- a/include/surfaceflinger/SurfaceComposerClient.h
+++ b/include/surfaceflinger/SurfaceComposerClient.h
@@ -28,7 +28,6 @@
 #include <utils/threads.h>
 
 #include <ui/PixelFormat.h>
-#include <ui/Region.h>
 
 #include <surfaceflinger/Surface.h>
 
@@ -39,30 +38,11 @@
 class DisplayInfo;
 class Composer;
 class IMemoryHeap;
-class ISurfaceComposer;
+class ISurfaceComposerClient;
 class Region;
-class surface_flinger_cblk_t;
-struct layer_state_t;
 
 // ---------------------------------------------------------------------------
 
-class ComposerService : public Singleton<ComposerService>
-{
-    // these are constants
-    sp<ISurfaceComposer> mComposerService;
-    sp<IMemoryHeap> mServerCblkMemory;
-    surface_flinger_cblk_t volatile* mServerCblk;
-    ComposerService();
-    friend class Singleton<ComposerService>;
-public:
-    static sp<ISurfaceComposer> getComposerService();
-    static surface_flinger_cblk_t const volatile * getControlBlock();
-};
-
-// ---------------------------------------------------------------------------
-
-class Composer;
-
 class SurfaceComposerClient : public RefBase
 {
     friend class Composer;
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 4ad6c22..699438c 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -39,6 +39,7 @@
 #include <private/surfaceflinger/LayerState.h>
 #include <private/surfaceflinger/SharedBufferStack.h>
 
+#include <private/gui/ComposerService.h>
 
 namespace android {
 // ---------------------------------------------------------------------------
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index b4d01a9..289726b 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -29,6 +29,8 @@
 
 #include <hardware/hardware.h>
 
+#include <private/gui/ComposerService.h>
+
 #include <surfaceflinger/ISurfaceComposer.h>
 #include <surfaceflinger/SurfaceComposerClient.h>
 #include <surfaceflinger/IGraphicBufferAlloc.h>
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index 3d47f05..691b52d 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -23,6 +23,8 @@
 
 #include <utils/Log.h>
 
+#include <private/gui/ComposerService.h>
+
 namespace android {
 
 SurfaceTextureClient::SurfaceTextureClient(
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 693b7b8..ea52750 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -22,6 +22,8 @@
 #include <surfaceflinger/SurfaceComposerClient.h>
 #include <utils/String8.h>
 
+#include <private/gui/ComposerService.h>
+
 namespace android {
 
 class SurfaceTest : public ::testing::Test {