Ozone GBM: i915_gem_end_cpu_access causes crash.

ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc

Index: ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc
diff --git a/ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc b/ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc
index 1c91acf34d2a6dcf53fccb577654ac40c51abb91..a37c6954ac77f86fbb5af35f20121e3891eb8f5b 100644
--- a/ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc
+++ b/ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc
@@ -40,7 +40,8 @@ void PrimeSyncStart(int dmabuf_fd) {
   struct local_dma_buf_sync sync_start = {0};
 
   sync_start.flags = LOCAL_DMA_BUF_SYNC_START | LOCAL_DMA_BUF_SYNC_READ;
-  if (drmIoctl(dmabuf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_start))
+  // TODO(tiago.vignatti): fix the crash bug. crbug.com/605774
+  if (false && drmIoctl(dmabuf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_start))
     PLOG(ERROR) << "Failed DMA_BUF_SYNC_START";
 }
 
@@ -48,7 +49,7 @@ void PrimeSyncEnd(int dmabuf_fd) {
   struct local_dma_buf_sync sync_end = {0};
 
   sync_end.flags = LOCAL_DMA_BUF_SYNC_END | LOCAL_DMA_BUF_SYNC_WRITE;
-  if (drmIoctl(dmabuf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_end))
+  if (false && drmIoctl(dmabuf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_end))
     PLOG(ERROR) << "Failed DMA_BUF_SYNC_END";
 }