Revert "Add API for flushing surfaces with gpu semaphores"

This reverts commit 66366c697853e906d961ae691e2bc5209cdcfa62.

Reason for revert: Failing test on mac bots

Original change's description:
> Add API for flushing surfaces with gpu semaphores
> 
> BUG=skia:
> 
> Change-Id: Ia4bfef784cd5f2516ceccafce958be18a86f91d1
> Reviewed-on: https://skia-review.googlesource.com/11488
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Forrest Reiling <freiling@google.com>

TBR=egdaniel@google.com,jvanverth@google.com,bsalomon@google.com,brianosman@google.com,freiling@google.com

Change-Id: I75633a2732d2d48b1926f9ad818a9f1a9196d211
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/20063
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>

1 files changed, 1 insertions, 13 deletions

diff --git a/src/image/SkSurface.cpp b/src/image/SkSurface.cpp
index fbd9f836d6..cd2a5f185f 100644
--- a/src/image/SkSurface.cpp
+++ b/src/image/SkSurface.cpp
@@ -184,19 +184,7 @@ bool SkSurface::getRenderTargetHandle(GrBackendObject* obj, BackendHandleAccess
 }
 
 void SkSurface::prepareForExternalIO() {
-    this->flush();
-}
-
-void SkSurface::flush() {
-    asSB(this)->onFlush(0, nullptr);
-}
-
-void SkSurface::flushAndSignalSemaphores(int numSemaphores, GrBackendSemaphore* signalSemaphores) {
-    return asSB(this)->onFlush(numSemaphores, signalSemaphores);
-}
-
-void SkSurface::wait(int numSemaphores, const GrBackendSemaphore* waitSemaphores) {
-    asSB(this)->onWait(numSemaphores, waitSemaphores);
+  asSB(this)->onPrepareForExternalIO();
 }
 
 //////////////////////////////////////////////////////////////////////////////////////