Add blink::WebInputEvent::IsPinchGestureEventType().

components/guest_view/browser/guest_view_base.cc

 // Copyright 2014 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 "components/guest_view/browser/guest_view_base.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
@@ skipping 131 matching lines @@
     guest_->Destroy(true);
   }
 
   DISALLOW_COPY_AND_ASSIGN(OwnerContentsObserver);
 };
 
 // This observer ensures that the GuestViewBase destroys itself if its opener
 // WebContents goes away before the GuestViewBase is attached.
 class GuestViewBase::OpenerLifetimeObserver : public WebContentsObserver {
  public:
-  OpenerLifetimeObserver(GuestViewBase* guest)
+  explicit OpenerLifetimeObserver(GuestViewBase* guest)
       : WebContentsObserver(guest->GetOpener()->web_contents()),
         guest_(guest) {}
 
   ~OpenerLifetimeObserver() override {}
 
   // WebContentsObserver implementation.
   void WebContentsDestroyed() override {
     if (guest_->attached())
       return;
 
@@ skipping 504 matching lines @@
                                                          params);
 }
 
 bool GuestViewBase::ShouldFocusPageAfterCrash() {
   // Focus is managed elsewhere.
   return false;
 }
 
 bool GuestViewBase::PreHandleGestureEvent(WebContents* source,
                                           const blink::WebGestureEvent& event) {
-  return event.GetType() == blink::WebGestureEvent::kGesturePinchBegin ||
-         event.GetType() == blink::WebGestureEvent::kGesturePinchUpdate ||
-         event.GetType() == blink::WebGestureEvent::kGesturePinchEnd;
+  return blink::WebInputEvent::IsPinchGestureEventType(event.GetType());
 }
 
 void GuestViewBase::UpdatePreferredSize(WebContents* target_web_contents,
                                         const gfx::Size& pref_size) {
   // In theory it's not necessary to check IsPreferredSizeModeEnabled() because
   // there will only be events if it was enabled in the first place. However,
   // something else may have turned on preferred size mode, so double check.
   DCHECK_EQ(web_contents(), target_web_contents);
   if (IsPreferredSizeModeEnabled()) {
     OnPreferredSizeChanged(pref_size);
@@ skipping 198 matching lines @@
 
 void GuestViewBase::UpdateGuestSize(const gfx::Size& new_size,
                                     bool due_to_auto_resize) {
   if (due_to_auto_resize)
     GuestSizeChangedDueToAutoSize(guest_size_, new_size);
   DispatchOnResizeEvent(guest_size_, new_size);
   guest_size_ = new_size;
 }
 
 }  // namespace guest_view