Keep the mouse cursor within desktop

content/browser/renderer_host/render_widget_host_view_aura.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/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/renderer_host/backing_store_skia.h"
@@ skipping 602 matching lines @@
 bool RenderWidgetHostViewAura::LockMouse() {
   aura::RootWindow* root_window = window_->GetRootWindow();
   if (!root_window)
     return false;
 
   if (mouse_locked_)
     return true;
 
   mouse_locked_ = true;
 
+  // TODO(oshima): Support Window::ConfineCursorToWindow.

[varunjain, 2012/03/23 16:56:01]

Please also make sure that we are ok with mouse lock not working on non-chromeos
aura

[oshima, 2012/03/23 18:25:09]

will do.

   root_window->SetCapture(window_);
-  if (root_window->ConfineCursorToWindow()) {
-    root_window->ShowCursor(false);
-    synthetic_move_sent_ = true;
-    root_window->MoveCursorTo(window_->bounds().CenterPoint());
-    if (aura::client::GetTooltipClient(root_window))
-      aura::client::GetTooltipClient(root_window)->SetTooltipsEnabled(false);
-    return true;
-  } else {
-    mouse_locked_ = false;
-    root_window->ReleaseCapture(window_);
-    return false;
-  }
+  root_window->ShowCursor(false);
+  synthetic_move_sent_ = true;
+  root_window->MoveCursorTo(window_->bounds().CenterPoint());
+  if (aura::client::GetTooltipClient(root_window))
+    aura::client::GetTooltipClient(root_window)->SetTooltipsEnabled(false);
+  return true;
 }
 
 void RenderWidgetHostViewAura::UnlockMouse() {
   aura::RootWindow* root_window = window_->GetRootWindow();
   if (!mouse_locked_ || !root_window)
     return;
 
   mouse_locked_ = false;
 
   root_window->ReleaseCapture(window_);
@@ skipping 568 matching lines @@
     WebKit::WebScreenInfo* results) {
   const gfx::Size size = gfx::Screen::GetPrimaryMonitorSize();
   results->rect = WebKit::WebRect(0, 0, size.width(), size.height());
   results->availableRect = results->rect;
   // TODO(derat): Don't hardcode this?
   results->depth = 24;
   results->depthPerComponent = 8;
   results->verticalDPI = 96;
   results->horizontalDPI = 96;
 }