Don't enable accessibility just because IAccessible2 APIs are queried.

content/browser/accessibility/browser_accessibility_win.cc

Index: content/browser/accessibility/browser_accessibility_win.cc
diff --git a/content/browser/accessibility/browser_accessibility_win.cc b/content/browser/accessibility/browser_accessibility_win.cc
index 680f26f298a664fd445a41eb378d7c1adfd1817a..6040ef8facf90caa002fe36cfb3cdfdb614f911f 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -3623,12 +3623,6 @@ STDMETHODIMP BrowserAccessibilityWin::QueryService(REFGUID guid_service,
   if (!instance_active())
     return E_FAIL;
 
-  // The system uses IAccessible APIs for many purposes, but only
-  // assistive technology like screen readers uses IAccessible2.
-  // Enable full accessibility support when IAccessible2 APIs are queried.
-  if (riid == IID_IAccessible2)
-    BrowserAccessibilityStateImpl::GetInstance()->EnableAccessibility();
-
   if (guid_service == GUID_IAccessibleContentDocument) {
     // Special Mozilla extension: return the accessible for the root document.
     // Screen readers use this to distinguish between a document loaded event