MacViews: Perform word lookup on force touch.

ui/views/cocoa/bridged_content_view.mm

 // 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.
 
 #import "ui/views/cocoa/bridged_content_view.h"
 
 #include "base/logging.h"
 #import "base/mac/mac_util.h"
 #import "base/mac/scoped_nsobject.h"
 #import "base/mac/sdk_forward_declarations.h"
@@ skipping 600 matching lines @@
 
   ui::MouseEvent event(theEvent);
 
   // Aura updates tooltips with the help of aura::Window::AddPreTargetHandler().
   // Mac hooks in here.
   [self updateTooltipIfRequiredAt:event.location()];
 
   hostedView_->GetWidget()->OnMouseEvent(&event);
 }
 
+- (void)forceTouchEvent:(NSEvent*)theEvent {
+  // Perform word lookup on force touch.

[tapted, 2016/12/19 04:04:33]

The comment probably isn't necessary, but I think we need to have

  if (ui::ForceClickInvokesQuickLook())

since ForceTouch can be configured to do other things in System Prefs

[karandeepb, 2016/12/19 04:28:20]

Oh yeah, thanks for catching this.

+  [self quickLookWithEvent:theEvent];
+}
+
 // NSView implementation.
 
 - (BOOL)acceptsFirstResponder {
   return YES;
 }
 
 - (BOOL)becomeFirstResponder {
   BOOL result = [super becomeFirstResponder];
   if (result && hostedView_)
     hostedView_->GetWidget()->GetFocusManager()->RestoreFocusedView();
@@ skipping 839 matching lines @@
   return [hostedView_->GetNativeViewAccessible() accessibilityHitTest:point];
 }
 
 - (id)accessibilityFocusedUIElement {
   if (!hostedView_)
     return nil;
   return [hostedView_->GetNativeViewAccessible() accessibilityFocusedUIElement];
 }
 
 @end