Remove CHECKs used for bug investigation.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 0cb8d20375ad2a994e7fcad449496d84ec4bd819..2be13809d4e821cc69de210cc16b93ce93b49c11 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -797,18 +797,15 @@ GpuChannelHost* RenderThreadImpl::EstablishGpuChannelSync(
                                                &renderer_process_for_gpu,
                                                &gpu_info)) ||
       channel_handle.name.empty() ||
+#if defined(OS_POSIX)
+      channel_handle.socket.fd == -1 ||
+#endif
       renderer_process_for_gpu == base::kNullProcessHandle) {
     // Otherwise cancel the connection.
     gpu_channel_ = NULL;
     return NULL;
   }
 
-#if defined(OS_POSIX)
-  // Check the validity of fd for bug investigation.  Replace with normal error
-  // handling (see above) after bug fixed. See for details: crbug.com/95732.
-  CHECK_NE(-1, channel_handle.socket.fd);
-#endif
-
   gpu_channel_->set_gpu_info(gpu_info);
   content::GetContentClient()->SetGpuInfo(gpu_info);