[Mac] Implement the system dictionary popup by implementing NSTextInput methods.

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2011 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 "chrome/browser/chrome_content_browser_client.h"
 
 #include "chrome/browser/debugger/devtools_handler.h"
 #include "chrome/browser/desktop_notification_handler.h"
 #include "chrome/browser/extensions/extension_message_handler.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/printing/printing_message_filter.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
 #include "chrome/browser/renderer_host/chrome_render_view_host_observer.h"
+#include "chrome/browser/renderer_host/text_input_client_message_filter.h"
 #include "chrome/browser/search_engines/search_provider_install_state_message_filter.h"
 #include "chrome/browser/spellcheck_message_filter.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_factory.h"
 #include "content/browser/renderer_host/browser_render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 
 namespace chrome {
 
 void ChromeContentBrowserClient::RenderViewHostCreated(
     RenderViewHost* render_view_host) {
@@ skipping 24 matching lines @@
 void ChromeContentBrowserClient::BrowserRenderProcessHostCreated(
     BrowserRenderProcessHost* host) {
   host->channel()->AddFilter(new ChromeRenderMessageFilter(
       host->id(),
       host->profile(),
       host->profile()->GetRequestContextForRenderProcess(host->id())));
   host->channel()->AddFilter(new PrintingMessageFilter());
   host->channel()->AddFilter(
       new SearchProviderInstallStateMessageFilter(host->id(), host->profile()));
   host->channel()->AddFilter(new SpellCheckMessageFilter());
+
+#if defined(OS_MACOSX)
+  host->channel()->AddFilter(new TextInputClientMessageFilter(host->id()));
+#endif
 }
 
 content::WebUIFactory* ChromeContentBrowserClient::GetWebUIFactory() {
   return ChromeWebUIFactory::GetInstance();
 }
 
 GURL ChromeContentBrowserClient::GetEffectiveURL(Profile* profile,
                                                  const GURL& url) {
   // Get the effective URL for the given actual URL. If the URL is part of an
   // installed app, the effective URL is an extension URL with the ID of that
   // extension as the host. This has the effect of grouping apps together in
   // a common SiteInstance.
   if (!profile || !profile->GetExtensionService())
     return url;
 
   const Extension* extension =
       profile->GetExtensionService()->GetExtensionByWebExtent(url);
   if (!extension)
     return url;
 
   // If the URL is part of an extension's web extent, convert it to an
   // extension URL.
   return extension->GetResourceURL(url.path());
 }
 
 }  // namespace chrome