Add Android AX functions to set the value and selection of a text field.

content/browser/accessibility/browser_accessibility_android.cc

 // Copyright 2013 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 "content/browser/accessibility/browser_accessibility_android.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/accessibility/browser_accessibility_manager_android.h"
 #include "content/common/accessibility_messages.h"
 
@@ skipping 125 matching lines @@
 
 bool BrowserAccessibilityAndroid::IsContentInvalid() const {
   std::string invalid;
   return GetHtmlAttribute("aria-invalid", &invalid);
 }
 
 bool BrowserAccessibilityAndroid::IsDismissable() const {
   return false;  // No concept of "dismissable" on the web currently.
 }
 
+bool BrowserAccessibilityAndroid::IsEditableText() const {
+  return (GetRole() == ui::AX_ROLE_EDITABLE_TEXT ||
+          GetRole() == ui::AX_ROLE_TEXT_AREA ||
+          GetRole() == ui::AX_ROLE_TEXT_FIELD);
+}
+
 bool BrowserAccessibilityAndroid::IsEnabled() const {
   return HasState(ui::AX_STATE_ENABLED);
 }
 
 bool BrowserAccessibilityAndroid::IsFocusable() const {
   bool focusable = HasState(ui::AX_STATE_FOCUSABLE);
   if (IsIframe() ||
       GetRole() == ui::AX_ROLE_WEB_AREA) {
     focusable = false;
   }
@@ skipping 533 matching lines @@
 int BrowserAccessibilityAndroid::CountChildrenWithRole(ui::AXRole role) const {
   int count = 0;
   for (uint32 i = 0; i < PlatformChildCount(); i++) {
     if (PlatformGetChild(i)->GetRole() == role)
       count++;
   }
   return count;
 }
 
 }  // namespace content