Drop the retargeting of accNavigate in BrowserAccessibilityWin

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 162f191772fc133384ef8cfaf581aaa7d4b27aa1..8a1e0e5840dd041b7c8314f4a28621d8988bdc7a 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -491,16 +491,17 @@ STDMETHODIMP BrowserAccessibilityWin::accNavigate(LONG nav_dir,
                                                   VARIANT start,
                                                   VARIANT* end) {
   WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_NAVIGATE);
-  BrowserAccessibilityWin* target = GetTargetFromChildID(start);
-  if (!target)
-    return E_INVALIDARG;
 
   // Forward all directions but NAVDIR_ to the platform node implementation.
   if (nav_dir != NAVDIR_DOWN && nav_dir != NAVDIR_UP &&
       nav_dir != NAVDIR_LEFT && nav_dir != NAVDIR_RIGHT) {
-    return target->GetPlatformNodeWin()->accNavigate(nav_dir, start, end);
+    return GetPlatformNodeWin()->accNavigate(nav_dir, start, end);
   }
 
+  BrowserAccessibilityWin* target = GetTargetFromChildID(start);
+  if (!target)
+    return E_INVALIDARG;
+
   BrowserAccessibility* result = nullptr;
   switch (nav_dir) {
     case NAVDIR_DOWN: