Convert //content/browser from scoped_ptr to std::unique_ptr

content/browser/gpu/browser_gpu_channel_host_factory.cc

Index: content/browser/gpu/browser_gpu_channel_host_factory.cc
diff --git a/content/browser/gpu/browser_gpu_channel_host_factory.cc b/content/browser/gpu/browser_gpu_channel_host_factory.cc
index 61082162286894a425894c6194285a6fadc25428..bc0a4c77c12c9379a0eaa0941972f092d1f17dc1 100644
--- a/content/browser/gpu/browser_gpu_channel_host_factory.cc
+++ b/content/browser/gpu/browser_gpu_channel_host_factory.cc
@@ -268,11 +268,11 @@ BrowserGpuChannelHostFactory::GetIOThreadTaskRunner() {
   return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
 }
 
-scoped_ptr<base::SharedMemory>
+std::unique_ptr<base::SharedMemory>
 BrowserGpuChannelHostFactory::AllocateSharedMemory(size_t size) {
-  scoped_ptr<base::SharedMemory> shm(new base::SharedMemory());
+  std::unique_ptr<base::SharedMemory> shm(new base::SharedMemory());
   if (!shm->CreateAnonymous(size))
-    return scoped_ptr<base::SharedMemory>();
+    return std::unique_ptr<base::SharedMemory>();
   return shm;
 }