Revert of Split ui/base/ime into a new component

ui/base/ime/mock_input_method.h

Index: ui/base/ime/mock_input_method.h
diff --git a/ui/base/ime/mock_input_method.h b/ui/base/ime/mock_input_method.h
index 5d854820ecaf422fe332d8037eeccac1cb4585ef..b88787c7c5a5004108871014a22d1fb4572864b8 100644
--- a/ui/base/ime/mock_input_method.h
+++ b/ui/base/ime/mock_input_method.h
@@ -12,7 +12,7 @@
 #include "base/observer_list.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/input_method_observer.h"
-#include "ui/base/ime/ui_base_ime_export.h"
+#include "ui/base/ui_base_export.h"
 
 namespace ui {
 
@@ -23,8 +23,7 @@
 // of this class as the global input method with calling
 // SetUpInputMethodFactoryForTesting() which is declared in
 // ui/base/ime/input_method_factory.h
-class UI_BASE_IME_EXPORT MockInputMethod
-    : NON_EXPORTED_BASE(public InputMethod) {
+class UI_BASE_EXPORT MockInputMethod : NON_EXPORTED_BASE(public InputMethod) {
  public:
   explicit MockInputMethod(internal::InputMethodDelegate* delegate);
   ~MockInputMethod() override;