Revert of Cross-process iframe accessibility.

content/test/accessibility_browser_test_utils.cc

Index: content/test/accessibility_browser_test_utils.cc
diff --git a/content/test/accessibility_browser_test_utils.cc b/content/test/accessibility_browser_test_utils.cc
index ef4389673d4a9200718e2333e3d5e6154b510dc5..ae514aec4af7ebb37fc4bfd07c70ce2763a0ea7a 100644
--- a/content/test/accessibility_browser_test_utils.cc
+++ b/content/test/accessibility_browser_test_utils.cc
@@ -21,11 +21,12 @@
 namespace content {
 
 AccessibilityNotificationWaiter::AccessibilityNotificationWaiter(Shell* shell)
-    : event_to_wait_for_(ui::AX_EVENT_NONE),
+    : shell_(shell),
+      event_to_wait_for_(ui::AX_EVENT_NONE),
       loop_runner_(new MessageLoopRunner()),
       weak_factory_(this),
       event_target_id_(0) {
-  WebContents* web_contents = shell->web_contents();
+  WebContents* web_contents = shell_->web_contents();
   frame_host_ = static_cast<RenderFrameHostImpl*>(
       web_contents->GetMainFrame());
   frame_host_->SetAccessibilityCallbackForTesting(
@@ -37,31 +38,19 @@
     Shell* shell,
     AccessibilityMode accessibility_mode,
     ui::AXEvent event_type)
-    : event_to_wait_for_(event_type),
+    : shell_(shell),
+      event_to_wait_for_(event_type),
       loop_runner_(new MessageLoopRunner()),
       weak_factory_(this),
       event_target_id_(0) {
   WebContentsImpl* web_contents = static_cast<WebContentsImpl*>(
-      shell->web_contents());
+      shell_->web_contents());
   frame_host_ = static_cast<RenderFrameHostImpl*>(
       web_contents->GetMainFrame());
   frame_host_->SetAccessibilityCallbackForTesting(
       base::Bind(&AccessibilityNotificationWaiter::OnAccessibilityEvent,
                  weak_factory_.GetWeakPtr()));
   web_contents->AddAccessibilityMode(accessibility_mode);
-}
-
-AccessibilityNotificationWaiter::AccessibilityNotificationWaiter(
-    RenderFrameHostImpl* frame_host,
-    ui::AXEvent event_type)
-    : frame_host_(frame_host),
-      event_to_wait_for_(event_type),
-      loop_runner_(new MessageLoopRunner()),
-      weak_factory_(this),
-      event_target_id_(0) {
-  frame_host_->SetAccessibilityCallbackForTesting(
-      base::Bind(&AccessibilityNotificationWaiter::OnAccessibilityEvent,
-                 weak_factory_.GetWeakPtr()));
 }
 
 AccessibilityNotificationWaiter::~AccessibilityNotificationWaiter() {