Fix Android accessibility for editable text fields

content/browser/accessibility/browser_accessibility_android.cc

Index: content/browser/accessibility/browser_accessibility_android.cc
diff --git a/content/browser/accessibility/browser_accessibility_android.cc b/content/browser/accessibility/browser_accessibility_android.cc
index 53df2492ce40548c40e2c2b40525c205cf329b5f..55982e9c450858f2d2805eee36cf0d58f9a8ce86 100644
--- a/content/browser/accessibility/browser_accessibility_android.cc
+++ b/content/browser/accessibility/browser_accessibility_android.cc
@@ -17,6 +17,8 @@
 
 namespace {
 
+const base::char16 kSecurePasswordBullet = 0x2022;
+
 // These are enums from android.text.InputType in Java:
 enum {
   ANDROID_TEXT_INPUTTYPE_TYPE_NULL = 0,
@@ -66,6 +68,22 @@ void BrowserAccessibilityAndroid::OnLocationChanged() {
   manager()->NotifyAccessibilityEvent(ui::AX_EVENT_LOCATION_CHANGED, this);
 }
 
+base::string16 BrowserAccessibilityAndroid::GetValue() const {
+  base::string16 value = BrowserAccessibility::GetValue();
+
+  // Optionally replace entered password text with bullet characters
+  // based on a user preference.
+  if (IsPassword()) {
+    bool should_expose = static_cast<BrowserAccessibilityManagerAndroid*>(
+        manager())->ShouldExposePasswordText();
+    if (!should_expose) {
+      value = base::string16(value.size(), kSecurePasswordBullet);
+    }
+  }
+
+  return value;
+}
+
 bool BrowserAccessibilityAndroid::PlatformIsLeaf() const {
   if (BrowserAccessibility::PlatformIsLeaf())
     return true;