[Ozone] Enables overlay render format setting path and by default use UYVY

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

Index: ui/ozone/platform/drm/gpu/drm_device.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_device.cc b/ui/ozone/platform/drm/gpu/drm_device.cc
index ad4979c45cb28bd17cfa94cd80a9d8ee8e9656e5..2c1203bd6b851dfc1a17e3d79774fe1df99dcdd1 100644
--- a/ui/ozone/platform/drm/gpu/drm_device.cc
+++ b/ui/ozone/platform/drm/gpu/drm_device.cc
@@ -299,17 +299,18 @@ ScopedDrmConnectorPtr DrmDevice::GetConnector(uint32_t connector_id) {
       drmModeGetConnector(file_.GetPlatformFile(), connector_id));
 }
 
-bool DrmDevice::AddFramebuffer(uint32_t width,
-                               uint32_t height,
-                               uint8_t depth,
-                               uint8_t bpp,
-                               uint32_t stride,
-                               uint32_t handle,
-                               uint32_t* framebuffer) {
+bool DrmDevice::AddFramebuffer2(uint32_t width,
+                                uint32_t height,
+                                uint32_t format,
+                                uint32_t handles[4],
+                                uint32_t strides[4],
+                                uint32_t offsets[4],
+                                uint32_t* framebuffer,
+                                uint32_t flags) {
   DCHECK(file_.IsValid());
-  TRACE_EVENT1("drm", "DrmDevice::AddFramebuffer", "handle", handle);
-  return !drmModeAddFB(file_.GetPlatformFile(), width, height, depth, bpp,
-                       stride, handle, framebuffer);
+  TRACE_EVENT1("drm", "DrmDevice::AddFramebuffer", "handle", handles[0]);
+  return !drmModeAddFB2(file_.GetPlatformFile(), width, height, format, handles,
+                        strides, offsets, framebuffer, 0);

[kalyank, 2015/11/06 17:30:26]

we should set whatever is passed in |flags| here and not 0. 

[william.xie1, 2015/11/06 18:24:02]

Done.

 }
 
 bool DrmDevice::RemoveFramebuffer(uint32_t framebuffer) {