Move FileEnumerator to its own file, do some refactoring.

media/video/capture/linux/video_capture_device_linux.cc

 // Copyright (c) 2012 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 "media/video/capture/linux/video_capture_device_linux.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #if defined(OS_OPENBSD)
 #include <sys/videoio.h>
 #else
 #include <linux/videodev2.h>
 #endif
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 
 #include <list>
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_util.h"
+#include "base/files/file_enumerator.h"
 #include "base/stringprintf.h"
 
 namespace media {
 
 // Max number of video buffers VideoCaptureDeviceLinux can allocate.
 enum { kMaxVideoBuffers = 2 };
 // Timeout in microseconds v4l2_thread_ blocks waiting for a frame from the hw.
 enum { kCaptureTimeoutUs = 200000 };
 // The number of continuous timeouts tolerated before treated as error.
 enum { kContinuousTimeoutLimit = 10 };
@@ skipping 63 matching lines @@
   return false;
 }
 
 void VideoCaptureDevice::GetDeviceNames(Names* device_names) {
   int fd = -1;
 
   // Empty the name list.
   device_names->clear();
 
   base::FilePath path("/dev/");
-  file_util::FileEnumerator enumerator(
-      path, false, file_util::FileEnumerator::FILES, "video*");
+  base::FileEnumerator enumerator(
+      path, false, base::FileEnumerator::FILES, "video*");
 
   while (!enumerator.Next().empty()) {
-    file_util::FileEnumerator::FindInfo info;
-    enumerator.GetFindInfo(&info);
+    base::FileEnumerator::FileInfo info = enumerator.GetInfo();
 
     Name name;
-    name.unique_id = path.value() + info.filename;
+    name.unique_id = path.value() + info.GetName().value();
     if ((fd = open(name.unique_id.c_str() , O_RDONLY)) < 0) {
       // Failed to open this device.
       continue;
     }
     // Test if this is a V4L2 capture device.
     v4l2_capability cap;
     if ((ioctl(fd, VIDIOC_QUERYCAP, &cap) == 0) &&
         (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) &&
         !(cap.capabilities & V4L2_CAP_VIDEO_OUTPUT)) {
       // This is a V4L2 video capture device
       if (HasUsableFormats(fd)) {
         name.device_name = base::StringPrintf("%s", cap.card);
         device_names->push_back(name);
       } else {
-        DVLOG(1) << "No usable formats reported by " << info.filename;
+        DVLOG(1) << "No usable formats reported by " << info.GetName().value();
       }
     }
     close(fd);
   }
 }
 
 VideoCaptureDevice* VideoCaptureDevice::Create(const Name& device_name) {
   VideoCaptureDeviceLinux* self = new VideoCaptureDeviceLinux(device_name);
   if (!self)
     return NULL;
@@ skipping 394 matching lines @@
   buffer_pool_size_ = 0;
 }
 
 void VideoCaptureDeviceLinux::SetErrorState(const std::string& reason) {
   DVLOG(1) << reason;
   state_ = kError;
   observer_->OnError();
 }
 
 }  // namespace media