Add private extension API to move the accessibility focus ring.

chrome/browser/accessibility/accessibility_extension_api.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 "chrome/browser/accessibility/accessibility_extension_api.h"
 
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/accessibility/accessibility_extension_api_constants.h"
 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/accessibility_private.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #include "components/infobars/core/infobar.h"
 #include "content/public/browser/browser_accessibility_state.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/lazy_background_task_queue.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/manifest_handlers/background_info.h"
 
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/ui/accessibility_focus_ring_controller.h"
+#endif
+
 namespace keys = extension_accessibility_api_constants;
 namespace accessibility_private = extensions::api::accessibility_private;
 
 // Returns the AccessibilityControlInfo serialized into a JSON string,
 // consisting of an array of a single object of type AccessibilityObject,
 // as defined in the accessibility extension api's json schema.
 scoped_ptr<base::ListValue> ControlInfoToEventArguments(
     const AccessibilityEventInfo* info) {
   base::DictionaryValue* dict = new base::DictionaryValue();
   info->SerializeToDict(dict);
@@ skipping 263 matching lines @@
       const base::string16 message_text =
           confirm_infobar_delegate->GetMessageText();
       alert_value->SetString(keys::kMessageKey, message_text);
       alerts_value->Append(alert_value);
     }
   }
 
   SetResult(alerts_value);
   return true;
 }
+
+bool AccessibilityPrivateSetFocusRingFunction::RunSync() {
+#if defined(OS_CHROMEOS)
+  base::ListValue* rect_values = NULL;
+  EXTENSION_FUNCTION_VALIDATE(args_->GetList(0, &rect_values));
+
+  std::vector<gfx::Rect> rects;
+  for (size_t i = 0; i < rect_values->GetSize(); ++i) {
+    base::DictionaryValue* rect_value = NULL;
+    EXTENSION_FUNCTION_VALIDATE(rect_values->GetDictionary(i, &rect_value));
+    int left, top, width, height;
+    EXTENSION_FUNCTION_VALIDATE(rect_value->GetInteger("left", &left));
+    EXTENSION_FUNCTION_VALIDATE(rect_value->GetInteger("top", &top));
+    EXTENSION_FUNCTION_VALIDATE(rect_value->GetInteger("width", &width));
+    EXTENSION_FUNCTION_VALIDATE(rect_value->GetInteger("height", &height));
+    rects.push_back(gfx::Rect(left, top, width, height));
+  }
+
+  chromeos::AccessibilityFocusRingController::GetInstance()->SetFocusRing(
+      rects);
+  return true;
+#endif  // defined(OS_CHROMEOS)
+
+  error_ = keys:: kErrorNotSupported;
+  return false;
+}