MidiHost: remove extra sys_ex check

has_sys_ex_permission_ had to be false to get into this branch

Change-Id: If288371ed602532a3e0230aa0dbc13ae3b0bb816
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404902
Auto-Submit: Johann Koenig <johannkoenig@google.com>
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Commit-Queue: Johann Koenig <johannkoenig@google.com>
Cr-Commit-Position: refs/heads/master@{#806832}

content/browser/media/midi_host.cc

@@ -205,15 +205,13 @@ void MidiHost::SendData(uint32_t port,
   // Check |has_sys_ex_permission_| first to avoid searching kSysExByte in large
   // bulk data transfers for correct uses.
   if (!has_sys_ex_permission_ && base::Contains(data, kSysExByte)) {
+    has_sys_ex_permission_ =
+        ChildProcessSecurityPolicyImpl::GetInstance()->CanSendMidiSysExMessage(
+            renderer_process_id_);
     if (!has_sys_ex_permission_) {
-      has_sys_ex_permission_ =
-          ChildProcessSecurityPolicyImpl::GetInstance()
-              ->CanSendMidiSysExMessage(renderer_process_id_);
-      if (!has_sys_ex_permission_) {
-        bad_message::ReceivedBadMessage(renderer_process_id_,
-                                        bad_message::MH_SYS_EX_PERMISSION);
-        return;
-      }
+      bad_message::ReceivedBadMessage(renderer_process_id_,
+                                      bad_message::MH_SYS_EX_PERMISSION);
+      return;
     }
   }