Remove CHECKs used for bug investigation.

content/common/gpu/gpu_channel_manager.cc

Index: content/common/gpu/gpu_channel_manager.cc
diff --git a/content/common/gpu/gpu_channel_manager.cc b/content/common/gpu/gpu_channel_manager.cc
index 9c12d1a321cc6608532e15bcffcff45f2bdb4f63..c2c3d20ef3d3adecc93f48c6cfb95e30b7101a91 100644
--- a/content/common/gpu/gpu_channel_manager.cc
+++ b/content/common/gpu/gpu_channel_manager.cc
@@ -93,9 +93,7 @@ void GpuChannelManager::OnEstablishChannel(int client_id, int share_client_id) {
     // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
     // that it gets closed after it has been sent.
     int renderer_fd = channel->TakeRendererFileDescriptor();
-    // Check the validity of |renderer_fd| for bug investigation.  Replace with
-    // normal error handling after bug fixed. See for details: crbug.com/95732.
-    CHECK_NE(-1, renderer_fd);
+    DCHECK_NE(-1, renderer_fd);
     channel_handle.socket = base::FileDescriptor(renderer_fd, true);
 #endif
   }