Fix behavior of WindowEventDispatcher::SynthesizeMouseMoveEvent().

chrome/browser/chromeos/accessibility/accessibility_manager.cc

Index: chrome/browser/chromeos/accessibility/accessibility_manager.cc
diff --git a/chrome/browser/chromeos/accessibility/accessibility_manager.cc b/chrome/browser/chromeos/accessibility/accessibility_manager.cc
index cc9d583eaa27ca4ecd59e1c59ea7c730b7641bd2..a15a66c63850de4f290556253d128ed205a67536 100644
--- a/chrome/browser/chromeos/accessibility/accessibility_manager.cc
+++ b/chrome/browser/chromeos/accessibility/accessibility_manager.cc
@@ -371,8 +371,17 @@ bool AccessibilityManager::ShouldShowAccessibilityMenu() {
 }
 
 bool AccessibilityManager::ShouldEnableCursorCompositing() {
-  // TODO(hshi): re-enable this on trunk after fixing issues. See
-  // http://crbug.com/362693, http://crosbug.com/p/28034.
+#if defined(OS_CHROMEOS)
+  if (!profile_)
+    return false;
+  PrefService* pref_service = profile_->GetPrefs();
+  // Enable cursor compositing when one or more of the listed accessibility
+  // features are turned on.
+  if (pref_service->GetBoolean(prefs::kLargeCursorEnabled) ||
+      pref_service->GetBoolean(prefs::kHighContrastEnabled) ||
+      pref_service->GetBoolean(prefs::kScreenMagnifierEnabled))
+    return true;
+#endif
   return false;
 }