[Android] Add spellchecking support in android_webview.

android_webview/browser/aw_content_browser_client.cc

 // 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.
 
 #include "android_webview/browser/aw_content_browser_client.h"
 
 #include <utility>
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_browser_main_parts.h"
@@ skipping 15 matching lines @@
 #include "android_webview/common/url_constants.h"
 #include "base/android/locale_utils.h"
 #include "base/base_paths_android.h"
 #include "base/command_line.h"
 #include "base/files/scoped_file.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "components/cdm/browser/cdm_message_filter_android.h"
 #include "components/crash/content/browser/crash_micro_dump_manager_android.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
+#include "components/spellcheck/browser/spellcheck_message_filter_platform.h"
+#include "components/spellcheck/common/spellcheck_switches.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/navigation_throttle.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 165 matching lines @@
     content::RenderProcessHost* host) {
   // Grant content: scheme access to the whole renderer process, since we impose
   // per-view access checks, and access is granted by default (see
   // AwSettings.mAllowContentUrlAccess).
   content::ChildProcessSecurityPolicy::GetInstance()->GrantScheme(
       host->GetID(), url::kContentScheme);
 
   host->AddFilter(new AwContentsMessageFilter(host->GetID()));
   host->AddFilter(new cdm::CdmMessageFilterAndroid());
   host->AddFilter(new AwPrintingMessageFilter(host->GetID()));
+
+#if defined(ENABLE_SPELLCHECK)
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      spellcheck::switches::kEnableAndroidSpellChecker)) {
+    host->AddFilter(new SpellCheckMessageFilterPlatform(host->GetID()));
+  }
+#endif
 }
 
 bool AwContentBrowserClient::IsHandledURL(const GURL& url) {
   if (!url.is_valid()) {
     // We handle error cases.
     return true;
   }
 
   const std::string scheme = url.scheme();
   DCHECK_EQ(scheme, base::ToLowerASCII(scheme));
@@ skipping 283 matching lines @@
 
 #if defined(VIDEO_HOLE)
 content::ExternalVideoSurfaceContainer*
 AwContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     content::WebContents* web_contents) {
   return native_factory_->CreateExternalVideoSurfaceContainer(web_contents);
 }
 #endif
 
 }  // namespace android_webview