Suppress a declarated-declaration warning for GetProcessInformation.

base/mac/mac_util.mm

Index: base/mac/mac_util.mm
diff --git a/base/mac/mac_util.mm b/base/mac/mac_util.mm
index 930a280ee3cb08fb491bfa64e45371bd3abcca1a..9615f9d2eeb1ae88ef29d025bb0f56289d6e0716 100644
--- a/base/mac/mac_util.mm
+++ b/base/mac/mac_util.mm
@@ -296,11 +296,21 @@ bool WasLaunchedAsLoginOrResumeItem() {
   ProcessInfoRec info = {};
   info.processInfoLength = sizeof(info);
 
+// GetProcessInformation has been deprecated since macOS 10.9, but there is no
+// replacement that provides the information we need. See
+// https://crbug.com/650854.
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
   if (GetProcessInformation(&psn, &info) == noErr) {
+#pragma clang diagnostic pop
     ProcessInfoRec parent_info = {};
     parent_info.processInfoLength = sizeof(parent_info);
-    if (GetProcessInformation(&info.processLauncher, &parent_info) == noErr)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+    if (GetProcessInformation(&info.processLauncher, &parent_info) == noErr) {
+#pragma clang diagnostic pop
       return parent_info.processSignature == 'lgnw';
+    }
   }
   return false;
 }