Workaround for chrome://net-internals debug crash on Android.

net/base/net_log_util.cc

 // Copyright 2014 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.
 
 #include "net/base/net_log_util.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 519 matching lines @@
     NetLog::ThreadSafeObserver* observer) {
   // Not safe to call this when the observer is watching a NetLog.
   DCHECK(!observer->net_log());
 
   // Put together the list of all requests.
   std::vector<const URLRequest*> requests;
   for (const auto& context : contexts) {
     // May only be called on the context's thread.
     DCHECK(context->CalledOnValidThread());
     // Contexts should all be using the same NetLog.
-    DCHECK_EQ((*contexts.begin())->net_log(), context->net_log());
+    // TODO(mmenke) This DCHECK fails on Android.

[jeremyim, 2015/01/28 22:12:04]

Alternatively, this could be wrapped with 
#if !defined(ANDROID_OS) to keep the DCHECK available on non-Android platforms.

+    // DCHECK_EQ((*contexts.begin())->net_log(), context->net_log());

[mmenke, 2015/01/30 15:17:14]

Outputting requests from two different NetLogs (Or from a NULL NetLog and a
non-NULL one) to a single observer really makes no sense.

I'd rather just have the call to  PrePopulateEventList() in net_internals_ui
skipped entirely on Android. 
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/ui/...

[jeremyim, 2015/01/30 15:48:07]

Done.

     for (const auto& request : *context->url_requests()) {
       requests.push_back(request);
     }
   }
 
   // Sort by creation time.
   std::sort(requests.begin(), requests.end(), RequestCreatedBefore);
 
   // Create fake events.
   ScopedVector<NetLog::Entry> entries;
   for (const auto& request : requests) {
     net::NetLog::ParametersCallback callback =
         base::Bind(&GetRequestStateAsValue, base::Unretained(request));
 
     net::NetLog::EntryData entry_data(net::NetLog::TYPE_REQUEST_ALIVE,
                                       request->net_log().source(),
                                       net::NetLog::PHASE_BEGIN,
                                       request->creation_time(),
                                       &callback);
     NetLog::Entry entry(&entry_data, request->net_log().GetLogLevel());
     observer->OnAddEntry(entry);
   }
 }
 
 }  // namespace net