Set the external display usage bit in Stagefright.

Change-Id: Ie18fa773fdb83508d96300dd7e4e4c7c3cdc4540
diff --git a/media/libstagefright/OMXCodec.cpp b/media/libstagefright/OMXCodec.cpp
index 6e8f190..6ca0f4f 100644
--- a/media/libstagefright/OMXCodec.cpp
+++ b/media/libstagefright/OMXCodec.cpp
@@ -1714,7 +1714,7 @@
     // Set up the native window.
     // XXX TODO: Get the gralloc usage flags from the OMX plugin!
     err = native_window_set_usage(
-            mNativeWindow.get(), GRALLOC_USAGE_HW_TEXTURE);
+            mNativeWindow.get(), GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_EXTERNAL_DISP);
     if (err != 0) {
         LOGE("native_window_set_usage failed: %s (%d)", strerror(-err), -err);
         return err;
diff --git a/media/libstagefright/colorconversion/SoftwareRenderer.cpp b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
index 3d507ca..acbea05 100644
--- a/media/libstagefright/colorconversion/SoftwareRenderer.cpp
+++ b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
@@ -88,7 +88,7 @@
             native_window_set_usage(
             mSurface.get(),
             GRALLOC_USAGE_SW_READ_NEVER | GRALLOC_USAGE_SW_WRITE_OFTEN
-            | GRALLOC_USAGE_HW_TEXTURE));
+            | GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_EXTERNAL_DISP));
 
     CHECK_EQ(0, native_window_set_buffer_count(mSurface.get(), 2));