[Ozone-Dri] Adding initial content protection support

ui/ozone/platform/dri/dri_wrapper.cc

 // Copyright 2014 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 "ui/ozone/platform/dri/dri_wrapper.h"
 
 #include <fcntl.h>
 #include <sys/mman.h>
 #include <unistd.h>
 #include <xf86drm.h>
@@ skipping 103 matching lines @@
                          &crtc->mode);
 }
 
 bool DriWrapper::DisableCrtc(uint32_t crtc_id) {
   DCHECK(fd_ >= 0);
   TRACE_EVENT1("dri", "DriWrapper::DisableCrtc",
                "crtc", crtc_id);
   return !drmModeSetCrtc(fd_, crtc_id, 0, 0, 0, NULL, 0, NULL);
 }
 
+ScopedDrmConnectorPtr DriWrapper::GetConnector(uint32_t connector_id) {
+  DCHECK(fd_ >= 0);
+  TRACE_EVENT1("dri", "DriWrapper::GetConnector", "connector", connector_id);
+  return ScopedDrmConnectorPtr(drmModeGetConnector(fd_, connector_id));
+}
+
 bool DriWrapper::AddFramebuffer(uint32_t width,
                                 uint32_t height,
                                 uint8_t depth,
                                 uint8_t bpp,
                                 uint32_t stride,
                                 uint32_t handle,
                                 uint32_t* framebuffer) {
   DCHECK(fd_ >= 0);
   TRACE_EVENT1("dri", "DriWrapper::AddFramebuffer",
                "handle", handle);
@@ skipping 145 matching lines @@
                                    uint32_t stride,
                                    void* pixels) {
   DCHECK(fd_ >= 0);
   TRACE_EVENT1("dri", "DriWrapper::DestroyDumbBuffer", "handle", handle);
   munmap(pixels, info.getSafeSize(stride));
   DrmDestroyDumbBuffer(fd_, handle);
 }
 
 
 }  // namespace ui