Use text input type to control visibility of virtual keyboard

views/ime/text_input_type_tracker.h

Index: views/ime/text_input_type_tracker.h
diff --git a/views/ime/text_input_type_tracker.h b/views/ime/text_input_type_tracker.h
index ecd16fdbfb0765f8569376db03409a7b8f8f9273..28d98261895280e45f0e59149131f912c67d3f87 100644
--- a/views/ime/text_input_type_tracker.h
+++ b/views/ime/text_input_type_tracker.h
@@ -9,6 +9,7 @@
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
 #include "ui/base/ime/text_input_type.h"
+#include "views/views_api.h"
 
 namespace views {
 
@@ -28,7 +29,7 @@ class TextInputTypeObserver {
 };
 
 // This class is for tracking the text input type of focused widget.
-class TextInputTypeTracker {
+class VIEWS_API TextInputTypeTracker {
  public:
   // Returns the singleton instance.
   static TextInputTypeTracker* GetInstance();