NotForReview: Implement zero/one-copy texture for ozone freon using Intel DRM

ui/ozone/platform/drm/gpu/gbm_buffer.cc

Index: ui/ozone/platform/drm/gpu/gbm_buffer.cc
diff --git a/ui/ozone/platform/drm/gpu/gbm_buffer.cc b/ui/ozone/platform/drm/gpu/gbm_buffer.cc
index 4a4380c8ecfcbc9c5afa21ecb60f148692359edc..aa491943cdc26237e4424554fe9559de51cfac3c 100644
--- a/ui/ozone/platform/drm/gpu/gbm_buffer.cc
+++ b/ui/ozone/platform/drm/gpu/gbm_buffer.cc
@@ -19,7 +19,7 @@ namespace {
 
 int GetGbmFormatFromBufferFormat(SurfaceFactoryOzone::BufferFormat fmt) {
   switch (fmt) {
-    case SurfaceFactoryOzone::RGBA_8888:
+    case SurfaceFactoryOzone::BGRA_8888:
       return GBM_BO_FORMAT_ARGB8888;
     case SurfaceFactoryOzone::RGBX_8888:
       return GBM_BO_FORMAT_XRGB8888;
@@ -31,10 +31,8 @@ int GetGbmFormatFromBufferFormat(SurfaceFactoryOzone::BufferFormat fmt) {
 
 }  // namespace
 
-GbmBuffer::GbmBuffer(const scoped_refptr<GbmDevice>& gbm,
-                     gbm_bo* bo,
-                     bool scanout)
-    : GbmBufferBase(gbm, bo, scanout) {
+GbmBuffer::GbmBuffer(const scoped_refptr<GbmDevice>& gbm, gbm_bo* bo)
+    : GbmBufferBase(gbm, bo) {
 }
 
 GbmBuffer::~GbmBuffer() {
@@ -46,21 +44,18 @@ GbmBuffer::~GbmBuffer() {
 scoped_refptr<GbmBuffer> GbmBuffer::CreateBuffer(
     const scoped_refptr<GbmDevice>& gbm,
     SurfaceFactoryOzone::BufferFormat format,
-    const gfx::Size& size,
-    bool scanout) {
+    const gfx::Size& size) {
   TRACE_EVENT2("drm", "GbmBuffer::CreateBuffer", "device",
                gbm->device_path().value(), "size", size.ToString());
-  unsigned flags = GBM_BO_USE_RENDERING;
-  if (scanout)
-    flags |= GBM_BO_USE_SCANOUT;
+  unsigned flags = GBM_BO_USE_RENDERING | GBM_BO_USE_SCANOUT;
   gbm_bo* bo = gbm_bo_create(gbm->device(), size.width(), size.height(),
                              GetGbmFormatFromBufferFormat(format), flags);
   if (!bo)
-    return NULL;
+    return nullptr;
 
-  scoped_refptr<GbmBuffer> buffer(new GbmBuffer(gbm, bo, scanout));
-  if (scanout && !buffer->GetFramebufferId())
-    return NULL;
+  scoped_refptr<GbmBuffer> buffer(new GbmBuffer(gbm, bo));
+  if (!buffer->GetFramebufferId())
+    return nullptr;
 
   return buffer;
 }