Forward BrowserAccessibility accSelect() to AXPlatformNode.

content/browser/accessibility/browser_accessibility.cc

Index: content/browser/accessibility/browser_accessibility.cc
diff --git a/content/browser/accessibility/browser_accessibility.cc b/content/browser/accessibility/browser_accessibility.cc
index 00b6605ed91cdf60edd05e799b8eb99de9b82c6b..b6f603b95f409ec5e9cb0813e7322b28b22fdc34 100644
--- a/content/browser/accessibility/browser_accessibility.cc
+++ b/content/browser/accessibility/browser_accessibility.cc
@@ -1218,6 +1218,11 @@ bool BrowserAccessibility::AccessibilityPerformAction(
     return true;
   }
 
+  if (data.action == ui::AX_ACTION_FOCUS) {
+    manager_->SetFocus(*this);
+    return true;
+  }
+
   return false;
 }