Make it possible to read CLD data from a file

chrome/common/render_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included file, no traditional include guard.
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 392 matching lines @@
 // be treated as a webapp.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_RetrieveWebappInformation,
                     GURL /* expected_url */)
 
 // Asks the renderer to return information about the given meta tag.
 IPC_MESSAGE_ROUTED2(ChromeViewMsg_RetrieveMetaTagContent,
                     GURL /* expected_url */,
                     std::string /* tag_name */ )
 #endif  // defined(OS_ANDROID)
 
+// Informs the renderer process that Compact Language Detector (CLD) data is
+// available and provides an IPC::PlatformFileForTransit obtained from
+// IPC::GetFileHandleForProcess(...)
+// See also: ChromeViewHostMsg_NeedCLDData
+IPC_MESSAGE_ROUTED1(ChromeViewMsg_CLDDataAvailable,
+                    IPC::PlatformFileForTransit)

[palmer, 2014/03/13 17:59:50]

Nit: Style is to put the variable name in a /* comment */ afterward.

[Andrew Hayden (chromium.org), 2014/03/13 23:20:21]

Done. Sorry, I should have noticed that in this file. Thanks for pointing it
out.

+
 // chrome.principals messages ------------------------------------------------
 
 // Message sent from the renderer to the browser to get the list of browser
 // managed accounts for the given origin.
 IPC_SYNC_MESSAGE_CONTROL1_1(ChromeViewHostMsg_GetManagedAccounts,
                             GURL /* current URL */,
                             std::vector<std::string> /* managed accounts */)
 
 // Message sent from the renderer to the browser to show the browser account
 // management UI.
@@ skipping 346 matching lines @@
                      std::vector<GURL> /* search_urls */,
                      GURL /* new_tab_page_url */)
 
 // Tells listeners that a detailed message was reported to the console by
 // WebKit.
 IPC_MESSAGE_ROUTED4(ChromeViewHostMsg_DetailedConsoleMessageAdded,
                     base::string16 /* message */,
                     base::string16 /* source */,
                     extensions::StackTrace /* stack trace */,
                     int32 /* severity level */)
+
+// Informs the browser process that Compact Language Detector (CLD) data is
+// required by the originating renderer. The browser process should respond
+// with a ChromeViewMsg_CLDDataAvailable if the data is available, else it
+// should go unanswered (the renderer will ask again later)
+// See also: ChromeViewMsg_CLDDataAvailable
+IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_NeedCLDData)