Migrate chrome_net_benchmarking_message_filter to mojo

chrome/common/chrome_net_benchmarking.mojom

Index: chrome/common/chrome_net_benchmarking.mojom
diff --git a/chrome/common/chrome_net_benchmarking.mojom b/chrome/common/chrome_net_benchmarking.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..a61453c92e556b87341daadfe2d8089ad246c8bc
--- /dev/null
+++ b/chrome/common/chrome_net_benchmarking.mojom
@@ -0,0 +1,28 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+module chrome.mojom;
+
+interface ChromeNetBenchmarking {

[Sam McNally, 2016/12/05 06:57:10]

Let's call this NetBenchmarking instead.

[dvallet, 2016/12/07 02:21:02]

Done

+  // Message sent from the renderer to the browser to request that the browser
+  // close all sockets.  Used for debugging/testing.
+  CloseCurrentConnections();

[Sam McNally, 2016/12/05 06:57:10]

These messages should [Sync].

[dvallet, 2016/12/07 02:21:02]

Done. What's your reasoning for this having to be sync?

[Sam McNally, 2016/12/08 22:57:46]

The messages they replace were declared with IPC_SYNC_MESSAGE. So all of the
remaining messages should be sync.

[dvallet, 2016/12/12 22:04:37]

Done

+  
+  // Message sent from the renderer to the browser to request that the browser
+  // enable or disable the cache.  Used for debugging/testing.
+  SetCacheMode(bool enabled);

[Sam McNally, 2016/12/05 06:57:09]

This doesn't appear to be used. I think we can delete it.

[dvallet, 2016/12/07 02:21:02]

Done

+
+  // Message sent from the renderer to the browser to request that the browser
+  // clear the cache.  Used for debugging/testing.
+  // |result| is the returned status from the operation.
+  ClearCache() => (int32 result);
+
+  // Message sent from the renderer to the browser to request that the browser
+  // clear the host cache.  Used for debugging/testing.
+  ClearHostResolverCache();
+  
+  // Message sent from the renderer to the browser to request that the browser
+  // clear the predictor cache.  Used for debugging/testing.
+  ClearPredictorCache();
+};