Add return to surface semaphore calls to indicate when we don't support them

Bug: skia:
Change-Id: I00118637bf6555278ca61707275ed60372de581d
Reviewed-on: https://skia-review.googlesource.com/20061
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gpu/SkGpuDevice.h b/src/gpu/SkGpuDevice.h
index 317533db82..b5133f4859 100644
--- a/src/gpu/SkGpuDevice.h
+++ b/src/gpu/SkGpuDevice.h
@@ -118,8 +118,8 @@ public:
     sk_sp<SkSpecialImage> snapSpecial() override;
 
     void flush() override;
-    void flushAndSignalSemaphores(int numSemaphores, GrBackendSemaphore* signalSemaphores);
-    void wait(int numSemaphores, const GrBackendSemaphore* waitSemaphores);
+    bool flushAndSignalSemaphores(int numSemaphores, GrBackendSemaphore* signalSemaphores);
+    bool wait(int numSemaphores, const GrBackendSemaphore* waitSemaphores);
 
     bool onAccessPixels(SkPixmap*) override;