[cairo] [PATCH 1/3] observer: Export cairo_surface_is_observer function

[Rob Bradford]

From: Rob Bradford <rob at linux.intel.com>

Signed-off-by: Rob Bradford <rob at linux.intel.com>
---
 src/cairo-surface-observer.c |    6 ++++++
 src/cairo.h                  |    3 +++
 2 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/src/cairo-surface-observer.c b/src/cairo-surface-observer.c
index 92f2624..3d7af94 100644
--- a/src/cairo-surface-observer.c
+++ b/src/cairo-surface-observer.c
@@ -1944,3 +1944,9 @@ cairo_device_observer_glyphs_elapsed (cairo_device_t *abstract_device)
     device = (cairo_device_observer_t *) abstract_device;
     return device->log.glyphs.elapsed;
 }
+
+cairo_bool_t
+cairo_surface_is_observer (cairo_surface_t *surface)
+{
+    return _cairo_surface_is_observer (surface);
+}
diff --git a/src/cairo.h b/src/cairo.h
index 710d997..f432a3e 100644
--- a/src/cairo.h
+++ b/src/cairo.h
@@ -2141,6 +2141,9 @@ typedef enum {
 	CAIRO_SURFACE_OBSERVER_RECORD_OPERATIONS = 0x1,
 } cairo_surface_observer_mode_t;
 
+cairo_public cairo_bool_t
+cairo_surface_is_observer (cairo_surface_t *surface);
+
 cairo_public cairo_surface_t *
 cairo_surface_create_observer (cairo_surface_t *target,
 			       cairo_surface_observer_mode_t mode);
-- 
1.7.6