events: Change gesture-event handler in EventHandler to not return any values.

ui/views/controls/textfield/native_textfield_views.cc

 // Copyright (c) 2012 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 "ui/views/controls/textfield/native_textfield_views.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 125 matching lines @@
   // TODO: Remove once NativeTextfield implementations are consolidated to
   // Textfield.
   textfield_->OnMouseReleased(event);
   // Cancel suspected drag initiations, the user was clicking in the selection.
   if (initiating_drag_ && MoveCursorTo(event.location(), false))
     SchedulePaint();
   initiating_drag_ = false;
   OnAfterUserAction();
 }
 
-ui::EventResult NativeTextfieldViews::OnGestureEvent(ui::GestureEvent* event) {
-  ui::EventResult status = textfield_->OnGestureEvent(event);
-  if (status != ui::ER_UNHANDLED)
-    return status;
+void NativeTextfieldViews::OnGestureEvent(ui::GestureEvent* event) {
+  textfield_->OnGestureEvent(event);
+  if (event->handled())
+    return;
 
   switch (event->type()) {
     case ui::ET_GESTURE_TAP_DOWN:
       OnBeforeUserAction();
       textfield_->RequestFocus();
       // We don't deselect if the point is in the selection
       // because TAP_DOWN may turn into a LONG_PRESS.
       if (!GetRenderText()->IsPointInSelection(event->location()) &&
           MoveCursorTo(event->location(), false))
         SchedulePaint();
       OnAfterUserAction();
-      return ui::ER_CONSUMED;
+      event->SetHandled();
+      return;
     case ui::ET_GESTURE_DOUBLE_TAP:
       SelectAll(false);
-      return ui::ER_CONSUMED;
+      event->SetHandled();
+      return;
     case ui::ET_GESTURE_SCROLL_UPDATE:
       OnBeforeUserAction();
       if (MoveCursorTo(event->location(), true))
         SchedulePaint();
       OnAfterUserAction();
-      return ui::ER_CONSUMED;
+      event->SetHandled();
+      return;
     default:
       break;
   }
-  return TouchSelectionClientView::OnGestureEvent(event);
+  TouchSelectionClientView::OnGestureEvent(event);
 }
 
 bool NativeTextfieldViews::OnKeyPressed(const ui::KeyEvent& event) {
   // OnKeyPressed/OnKeyReleased/OnFocus/OnBlur will never be invoked on
   // NativeTextfieldViews as it will never gain focus.
   NOTREACHED();
   return false;
 }
 
 bool NativeTextfieldViews::OnKeyReleased(const ui::KeyEvent& event) {
@@ skipping 1077 matching lines @@
   // Filter out all control characters, including tab and new line characters,
   // and all characters with Alt modifier. But we need to allow characters with
   // AltGr modifier.
   // On Windows AltGr is represented by Alt+Ctrl, and on Linux it's a different
   // flag that we don't care about.
   return ((ch >= 0x20 && ch < 0x7F) || ch > 0x9F) &&
       (flags & ~(ui::EF_SHIFT_DOWN | ui::EF_CAPS_LOCK_DOWN)) != ui::EF_ALT_DOWN;
 }
 
 }  // namespace views