diff --git a/include/gui/ISurfaceComposer.h b/include/gui/ISurfaceComposer.h
index 74a4123..74ccf95 100644
--- a/include/gui/ISurfaceComposer.h
+++ b/include/gui/ISurfaceComposer.h
@@ -171,6 +171,10 @@
      */
     virtual status_t getHdrCapabilities(const sp<IBinder>& display,
             HdrCapabilities* outCapabilities) const = 0;
+
+    virtual status_t enableVSyncInjections(bool enable) = 0;
+
+    virtual status_t injectVSync(nsecs_t when) = 0;
 };
 
 // ----------------------------------------------------------------------------
@@ -202,6 +206,8 @@
         GET_DISPLAY_COLOR_MODES,
         GET_ACTIVE_COLOR_MODE,
         SET_ACTIVE_COLOR_MODE,
+        ENABLE_VSYNC_INJECTIONS,
+        INJECT_VSYNC
     };
 
     virtual status_t onTransact(uint32_t code, const Parcel& data,
diff --git a/include/gui/Surface.h b/include/gui/Surface.h
index 8177ec6..8574390 100644
--- a/include/gui/Surface.h
+++ b/include/gui/Surface.h
@@ -205,7 +205,6 @@
     virtual int connect(int api);
     virtual int disconnect(int api);
     virtual int setBufferCount(int bufferCount);
-    virtual int setBuffersDimensions(uint32_t width, uint32_t height);
     virtual int setBuffersUserDimensions(uint32_t width, uint32_t height);
     virtual int setBuffersFormat(PixelFormat format);
     virtual int setBuffersTransform(uint32_t transform);
@@ -221,6 +220,7 @@
     virtual int setAsyncMode(bool async);
     virtual int setSharedBufferMode(bool sharedBufferMode);
     virtual int setAutoRefresh(bool autoRefresh);
+    virtual int setBuffersDimensions(uint32_t width, uint32_t height);
     virtual int lock(ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds);
     virtual int unlockAndPost();
     virtual int query(int what, int* value) const;
diff --git a/include/gui/SurfaceComposerClient.h b/include/gui/SurfaceComposerClient.h
index b8ee331..8f4ab7a 100644
--- a/include/gui/SurfaceComposerClient.h
+++ b/include/gui/SurfaceComposerClient.h
@@ -131,6 +131,10 @@
     //! Close a composer transaction on all active SurfaceComposerClients.
     static void closeGlobalTransaction(bool synchronous = false);
 
+    static status_t enableVSyncInjections(bool enable);
+
+    static status_t injectVSync(nsecs_t when);
+
     //! Flag the currently open transaction as an animation transaction.
     static void setAnimationTransaction();