Clean up names and remove unnecessary parameter

content/renderer/input/render_widget_input_handler.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/input/render_widget_input_handler.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 
@@ skipping 395 matching lines @@
     RenderThreadImpl::current()
         ->GetRendererScheduler()
         ->DidHandleInputEventOnMainThread(input_event);
   }
 
 #if defined(OS_ANDROID)
   // Allow the IME to be shown when the focus changes as a consequence
   // of a processed touch end event.
   if (input_event.type == WebInputEvent::TouchEnd &&
       processed != WebInputEventResult::NotHandled) {
-    delegate_->UpdateTextInputState(ShowIme::IF_NEEDED,
-                                    ChangeSource::FROM_NON_IME);
+    delegate_->UpdateTextInputState(ShowIme::IF_NEEDED);
   }
 #elif defined(USE_AURA)
   // Show the virtual keyboard if enabled and a user gesture triggers a focus
   // change.
   if (processed != WebInputEventResult::NotHandled &&
       (input_event.type == WebInputEvent::TouchEnd ||
        input_event.type == WebInputEvent::MouseUp)) {
-    delegate_->UpdateTextInputState(ShowIme::IF_NEEDED, ChangeSource::FROM_IME);
+    delegate_->UpdateTextInputState(ShowIme::IF_NEEDED);
   }
 #endif
 
   if (!prevent_default && WebInputEvent::isKeyboardEventType(input_event.type))
     delegate_->OnDidHandleKeyEvent();
 
 // TODO(rouslan): Fix ChromeOS and Windows 8 behavior of autofill popup with
 // virtual keyboard.
 #if !defined(OS_ANDROID)
   // Virtual keyboard is not supported, so react to focus change immediately.
@@ skipping 23 matching lines @@
   // it can be bundled in the event ack.
   if (handling_event_overscroll_) {
     *handling_event_overscroll_ = std::move(params);
     return;
   }
 
   delegate_->OnDidOverscroll(*params);
 }
 
 }  // namespace content