[Ozone] VAAPI wrapper should open its own render node.

content/common/gpu/media/vaapi_wrapper.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/common/gpu/media/vaapi_wrapper.h"
 
 #include <dlfcn.h>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 273 matching lines @@
     return false;
   }
 
   report_error_to_uma_cb_ = report_error_to_uma_cb;
 
   base::AutoLock auto_lock(va_lock_);
 
 #if defined(USE_X11)
   va_display_ = vaGetDisplay(gfx::GetXDisplay());
 #elif defined(USE_OZONE)
-  ui::OzonePlatform* platform = ui::OzonePlatform::GetInstance();
-  ui::SurfaceFactoryOzone* factory = platform->GetSurfaceFactoryOzone();
-
-  va_display_ = vaGetDisplayDRM(factory->GetDrmFd());
+  const char* kDriRenderNode0Path = "/dev/dri/renderD128";

[Pawel Osciak, 2015/04/08 23:39:20]

I don't see this node on BYT or HSW for example...

Also, const base::FilePath::CharType* foo = FILE_PATH_LITERAL("foobar"); ?

+  drm_file_ = base::File(base::FilePath::FromUTF8Unsafe(kDriRenderNode0Path),
+                         base::File::FLAG_OPEN | base::File::FLAG_READ |
+                         base::File::FLAG_WRITE);
+  va_display_ = vaGetDisplayDRM(drm_file_.GetPlatformFile());
 #endif  // USE_X11
 
   if (!vaDisplayIsValid(va_display_)) {
     LOG(ERROR) << "Could not get a valid VA display";
     return false;
   }
 
   VAStatus va_res = vaInitialize(va_display_, &major_version_, &minor_version_);
   VA_SUCCESS_OR_RETURN(va_res, "vaInitialize failed", false);
   va_initialized_ = true;
@@ skipping 746 matching lines @@
 bool VaapiWrapper::LazyProfileInfos::IsProfileSupported(
     CodecMode mode, VAProfile va_profile) {
   for (const auto& profile : supported_profiles_[mode]) {
     if (profile.va_profile == va_profile)
       return true;
   }
   return false;
 }
 
 }  // namespace content