Implements core logic for Pixel Canvas

ui/views/cocoa/bridged_native_widget.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_native_widget.h"
 
 #import <objc/runtime.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 1257 matching lines @@
   DCHECK(context_factory);
   ui::ContextFactoryPrivate* context_factory_private =
       ViewsDelegate::GetInstance()->GetContextFactoryPrivate();
 
   AddCompositorSuperview();
 
   compositor_widget_.reset(new ui::AcceleratedWidgetMac());
   compositor_.reset(new ui::Compositor(
       context_factory_private->AllocateFrameSinkId(), context_factory,
       context_factory_private, GetCompositorTaskRunner(),
-      false /* enable_surface_synchronization */));
+      false /* enable_surface_synchronization */,
+      false /* enable_pixel_canvas */));
   compositor_->SetAcceleratedWidget(compositor_widget_->accelerated_widget());
   compositor_widget_->SetNSView(this);
 }
 
 void BridgedNativeWidget::InitCompositor() {
   DCHECK(layer());
   float scale_factor = GetDeviceScaleFactorFromView(compositor_superview_);
   gfx::Size size_in_dip = GetClientAreaSize();
   compositor_->SetScaleAndSize(scale_factor,
                                ConvertSizeToPixel(scale_factor, size_in_dip));
@@ skipping 140 matching lines @@
   [bridged_view_ setMouseDownCanMoveWindow:draggable];
   // AppKit will not update its cache of mouseDownCanMoveWindow unless something
   // changes. Previously we tried adding an NSView and removing it, but for some
   // reason it required reposting the mouse-down event, and didn't always work.
   // Calling the below seems to be an effective solution.
   [window_ setMovableByWindowBackground:NO];
   [window_ setMovableByWindowBackground:YES];
 }
 
 }  // namespace views