Simplify TouchAction enum to be a simple bit flag

content/renderer/render_widget.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 "content/renderer/render_widget.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 2244 matching lines @@
   if (render_widget_scheduling_state_)
     render_widget_scheduling_state_->SetHasTouchHandler(has_handlers);
   Send(new ViewHostMsg_HasTouchEventHandlers(routing_id_, has_handlers));
 }
 
 // Check blink::WebTouchAction and  blink::WebTouchActionAuto is kept in sync
 #define STATIC_ASSERT_WTI_ENUM_MATCH(a, b)                                         \
     static_assert(int(blink::WebTouchAction##a) == int(TOUCH_ACTION_##b), \
                   "mismatching enums: " #a)
 
-inline content::TouchAction& operator|=(content::TouchAction& a,
-                                        content::TouchAction b) {
-  a = static_cast<content::TouchAction>(static_cast<int>(a) |
-                                        static_cast<int>(b));
-  return a;
-}
-
 void RenderWidget::setTouchAction(
     blink::WebTouchAction web_touch_action) {
 
   // Ignore setTouchAction calls that result from synthetic touch events (eg.
   // when blink is emulating touch with mouse).
   if (handling_event_type_ != WebInputEvent::TouchStart)
     return;
 
   // Verify the same values are used by the types so we can cast between them.
-   STATIC_ASSERT_WTI_ENUM_MATCH(Auto,      AUTO);
    STATIC_ASSERT_WTI_ENUM_MATCH(None,      NONE);
    STATIC_ASSERT_WTI_ENUM_MATCH(PanLeft,   PAN_LEFT);
    STATIC_ASSERT_WTI_ENUM_MATCH(PanRight,  PAN_RIGHT);
    STATIC_ASSERT_WTI_ENUM_MATCH(PanX,      PAN_X);
    STATIC_ASSERT_WTI_ENUM_MATCH(PanUp,     PAN_UP);
    STATIC_ASSERT_WTI_ENUM_MATCH(PanDown,   PAN_DOWN);
    STATIC_ASSERT_WTI_ENUM_MATCH(PanY,      PAN_Y);
+   STATIC_ASSERT_WTI_ENUM_MATCH(Pan,       PAN);
    STATIC_ASSERT_WTI_ENUM_MATCH(PinchZoom, PINCH_ZOOM);
+   STATIC_ASSERT_WTI_ENUM_MATCH(Manipulation, MANIPULATION);
+   STATIC_ASSERT_WTI_ENUM_MATCH(DoubleTapZoom, DOUBLE_TAP_ZOOM);
+   STATIC_ASSERT_WTI_ENUM_MATCH(Auto,      AUTO);
 
    content::TouchAction content_touch_action =
        static_cast<content::TouchAction>(web_touch_action);
   Send(new InputHostMsg_SetTouchAction(routing_id_, content_touch_action));
 }
 
 void RenderWidget::didUpdateTextOfFocusedElementByNonUserInput() {
 #if defined(OS_ANDROID)
   text_field_is_dirty_ = true;
 #endif
@@ skipping 97 matching lines @@
 void RenderWidget::RegisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.AddObserver(frame);
 }
 
 void RenderWidget::UnregisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.RemoveObserver(frame);
 }
 #endif  // defined(VIDEO_HOLE)
 
 }  // namespace content