Add more fine-grained accessibility modes.

chrome/browser/extensions/api/automation_internal/automation_internal_api.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 "chrome/browser/extensions/api/automation_internal/automation_internal_api.h"
 
 #include <stdint.h>
 
 #include <vector>
 
@@ skipping 253 matching lines @@
   content::RenderFrameHost* rfh = contents->GetMainFrame();
   if (!rfh)
     return RespondNow(Error("Could not enable accessibility for active tab"));
 
   if (!CanRequestAutomation(extension(), automation_info, contents)) {
     return RespondNow(
         Error(kCannotRequestAutomationOnPage, contents->GetURL().spec()));
   }
 
   AutomationWebContentsObserver::CreateForWebContents(contents);
-  contents->EnableTreeOnlyAccessibilityMode();
+  contents->EnableWebContentsOnlyAccessibilityMode();
 
   int ax_tree_id = rfh->GetAXTreeID();
 
   // This gets removed when the extension process dies.
   AutomationEventRouter::GetInstance()->RegisterListenerForOneTree(
       extension_id(),
       source_process_id(),
       params->args.routing_id,
       ax_tree_id);
 
@@ skipping 13 matching lines @@
   if (!rfh)
     return RespondNow(Error("unable to load tab"));
 
   content::WebContents* contents =
       content::WebContents::FromRenderFrameHost(rfh);
   AutomationWebContentsObserver::CreateForWebContents(contents);
 
   // Only call this if this is the root of a frame tree, to avoid resetting
   // the accessibility state multiple times.
   if (!rfh->GetParent())
-    contents->EnableTreeOnlyAccessibilityMode();
+    contents->EnableWebContentsOnlyAccessibilityMode();
 
   return RespondNow(NoArguments());
 }
 
 ExtensionFunction::ResponseAction
 AutomationInternalPerformActionFunction::Run() {
   const AutomationInfo* automation_info = AutomationInfo::Get(extension());
   EXTENSION_FUNCTION_VALIDATE(automation_info && automation_info->interact);
 
   using api::automation_internal::PerformAction::Params;
@@ skipping 158 matching lines @@
   if (!error.empty()) {
     Respond(Error(error));
     return;
   }
 
   Respond(
       OneArgument(base::MakeUnique<base::FundamentalValue>(result_acc_obj_id)));
 }
 
 }  // namespace extensions