exo: Explicitly initialize Ozone in wayland clients.

components/exo/wayland/clients/client_base.cc

 // Copyright 2017 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 "components/exo/wayland/clients/client_base.h"
 
 #include <fcntl.h>
 #include <linux-dmabuf-unstable-v1-client-protocol.h>
 #include <presentation-time-client-protocol.h>
 #include <wayland-client-core.h>
@@ skipping 15 matching lines @@
 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_enums.h"
 #include "ui/gl/gl_surface_egl.h"
 #include "ui/gl/init/gl_factory.h"
 
 #if defined(OZONE_PLATFORM_GBM)
 #include <drm_fourcc.h>
 #include <gbm.h>
 #include <xf86drm.h>
+
+#include "ui/ozone/public/ozone_platform.h"
 #endif
 
 namespace exo {
 namespace wayland {
 namespace clients {
 namespace switches {
 
 // Specifies the client buffer size.
 const char kSize[] = "size";
 
@@ skipping 220 matching lines @@
       LOG_IF(ERROR, !params.use_drm) << "Can't find drm device";
       return false;
     }
 
     device_.reset(gbm_create_device(drm_fd_.get()));
     if (!device_) {
       LOG(ERROR) << "Can't create gbm device";
       return false;
     }
 
+    ui::OzonePlatform::InitParams params;
+    params.single_process = true;
+    ui::OzonePlatform::InitializeForGPU(params);
     bool gl_initialized = gl::init::InitializeGLOneOff();
     DCHECK(gl_initialized);
     gl_surface_ = gl::init::CreateOffscreenGLSurface(gfx::Size());
     gl_context_ =
         gl::init::CreateGLContext(nullptr,  // share_group
                                   gl_surface_.get(), gl::GLContextAttribs());
 
     make_current_.reset(
         new ui::ScopedMakeCurrent(gl_context_.get(), gl_surface_.get()));
 
@@ skipping 173 matching lines @@
   buffer->sk_surface = SkSurface::MakeRasterDirect(
       SkImageInfo::Make(width_, height_, kColorType, kOpaque_SkAlphaType),
       static_cast<uint8_t*>(buffer->shared_memory->memory()), stride);
   DCHECK(buffer->sk_surface);
   return buffer;
 }
 
 }  // namespace clients
 }  // namespace wayland
 }  // namespace exo