Remove iOS ifdefs in src/content.

content/browser/media/capture/web_contents_video_capture_device_unittest.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 "content/browser/media/capture/web_contents_video_capture_device.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 
@@ skipping 427 matching lines @@
           buffer_handle_(std::move(buffer_handle)) {
       DCHECK(pool_.get());
     }
     int id() const override { return id_; }
     gfx::Size dimensions() const override { return gfx::Size(); }
     size_t mapped_size() const override {
       return buffer_handle_->mapped_size();
     }
     void* data(int plane) override { return buffer_handle_->data(plane); }
     ClientBuffer AsClientBuffer(int plane) override { return nullptr; }
-#if defined(OS_POSIX) && !(defined(OS_MACOSX) && !defined(OS_IOS))
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
     base::FileDescriptor AsPlatformFile() override {
       return base::FileDescriptor();
     }
 #endif
 
    private:
     ~AutoReleaseBuffer() override { pool_->RelinquishProducerReservation(id_); }
 
     const int id_;
     const scoped_refptr<VideoCaptureBufferPool> pool_;
@@ skipping 690 matching lines @@
         policies[i], gfx::Size(1000, 1000), gfx::Size(1000, 1000));
     RunTestForPreferredSize(
         policies[i], gfx::Size(1600, 1000), gfx::Size(1600, 1000));
     RunTestForPreferredSize(
         policies[i], gfx::Size(837, 999), gfx::Size(837, 999));
   }
 }
 
 }  // namespace
 }  // namespace content