Perform direct routing of mouse events when the pointer is locked.

content/browser/web_contents/web_contents_view_mac.mm

 // 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.
 
 #import <Carbon/Carbon.h>
 
 #import "content/browser/web_contents/web_contents_view_mac.h"
 
 #include <string>
 
@@ skipping 62 matching lines @@
 - (void)cancelDeferredClose;
 - (void)clearWebContentsView;
 - (void)closeTabAfterEvent;
 - (void)updateWebContentsVisibility;
 - (void)viewDidBecomeFirstResponder:(NSNotification*)notification;
 - (content::WebContentsImpl*)webContents;
 @end
 
 namespace {
 
+WebContentsViewMac::RenderWidgetHostViewCreateFunction
+    g_create_render_widget_host_view = nullptr;
+
 content::ScreenInfo GetNSViewScreenInfo(NSView* view) {
   display::Display display =
       display::Screen::GetScreen()->GetDisplayNearestWindow(view);
 
   content::ScreenInfo results;
   results.device_scale_factor = static_cast<int>(display.device_scale_factor());
   results.icc_profile = display.icc_profile();
   results.depth = display.color_depth();
   results.depth_per_component = display.depth_per_component();
   results.is_monochrome = display.is_monochrome();
   results.rect = display.bounds();
   results.available_rect = display.work_area();
   results.orientation_angle = display.RotationAsDegree();
   results.orientation_type =
       content::RenderWidgetHostViewBase::GetOrientationTypeForDesktop(display);
 
   return results;
 }
 
 }  // namespace
 
 namespace content {
 
 // static
+void WebContentsViewMac::InstallCreateHookForTests(
+    RenderWidgetHostViewCreateFunction create_render_widget_host_view) {
+  CHECK_EQ(nullptr, g_create_render_widget_host_view);
+  g_create_render_widget_host_view = create_render_widget_host_view;
+}
+
+// static
 void WebContentsView::GetDefaultScreenInfo(ScreenInfo* results) {
   *results = GetNSViewScreenInfo(nil);
 }
 
 WebContentsView* CreateWebContentsView(
     WebContentsImpl* web_contents,
     WebContentsViewDelegate* delegate,
     RenderViewHostDelegateView** render_view_host_delegate_view) {
   WebContentsViewMac* rv = new WebContentsViewMac(web_contents, delegate);
   *render_view_host_delegate_view = rv;
@@ skipping 226 matching lines @@
     // During testing, the view will already be set up in most cases to the
     // test view, so we don't want to clobber it with a real one. To verify that
     // this actually is happening (and somebody isn't accidentally creating the
     // view twice), we check for the RVH Factory, which will be set when we're
     // making special ones (which go along with the special views).
     DCHECK(RenderViewHostFactory::has_factory());
     return static_cast<RenderWidgetHostViewBase*>(
         render_widget_host->GetView());
   }
 
-  RenderWidgetHostViewMac* view = new RenderWidgetHostViewMac(
-      render_widget_host, is_guest_view_hack);
+  RenderWidgetHostViewMac* view =
+      g_create_render_widget_host_view
+          ? g_create_render_widget_host_view(render_widget_host,
+                                             is_guest_view_hack)
+          : new RenderWidgetHostViewMac(render_widget_host, is_guest_view_hack);
   if (delegate()) {
     base::scoped_nsobject<NSObject<RenderWidgetHostViewMacDelegate> >
         rw_delegate(
             delegate()->CreateRenderWidgetHostViewDelegate(render_widget_host));
 
     view->SetDelegate(rw_delegate.get());
   }
   view->SetAllowPauseForResizeOrRepaint(!allow_other_views_);
 
   // Fancy layout comes later; for now just make it our size and resize it
@@ skipping 356 matching lines @@
 
 - (void)viewDidHide {
   [self updateWebContentsVisibility];
 }
 
 - (void)viewDidUnhide {
   [self updateWebContentsVisibility];
 }
 
 @end