Implement chrome.streamsPrivate.abort() extensions function

extensions/browser/extension_function_histogram_value.h

 // 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.
 
 #ifndef EXTENSIONS_BROWSER_EXTENSION_FUNCTION_HISTOGRAM_VALUE_H_
 #define EXTENSIONS_BROWSER_EXTENSION_FUNCTION_HISTOGRAM_VALUE_H_
 
 namespace extensions {
 namespace functions {
 
@@ skipping 823 matching lines @@
   FILESYSTEMPROVIDERINTERNAL_READFILEREQUESTEDERROR,
   NETWORKINGPRIVATE_GETNETWORKS,
   WEBVIEW_SETNAME,
   ENTERPRISE_PLATFORMKEYSINTERNAL_GENERATEKEY,
   ENTERPRISE_PLATFORMKEYSINTERNAL_SIGN,
   ENTERPRISE_PLATFORMKEYSINTERNAL_GETTOKENS,
   ENTERPRISE_PLATFORMKEYS_GETCERTIFICATES,
   ENTERPRISE_PLATFORMKEYS_IMPORTCERTIFICATE,
   ENTERPRISE_PLATFORMKEYS_REMOVECERTIFICATE,
   FILEBROWSERPRIVATE_OPENINSPECTOR,
+  STREAMSPRIVATE_ABORT,

[wjywbs, 2014/05/28 00:53:58]

I think you also need to change
tools/metrics/histograms/histograms/histograms.xml as described below. For
example, https://codereview.chromium.org/299443009 After your fix, I'll rebase
the histograms of my CL again... Thanks a lot.

   // Last entry: Add new entries above and ensure to update
   // tools/metrics/histograms/histograms/histograms.xml.
   ENUM_BOUNDARY
 };
 
 }  // namespace functions
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_FUNCTION_HISTOGRAM_VALUE_H_