[MacViews] Implement size constraints for app windows.

chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm

Index: chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm b/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
index 95b1c8ac900bae6ce19b795c0208eccda0e1638c..6744a8c5f72f47755778e020293f83aaa21bcf0c 100644
--- a/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
@@ -22,6 +22,7 @@
 #include "extensions/common/extension.h"
 #include "skia/ext/skia_utils_mac.h"
 #include "third_party/skia/include/core/SkRegion.h"
+#import "ui/gfx/mac/nswindow_frame_controls.h"
 #include "ui/gfx/skia_util.h"
 
 // NOTE: State Before Update.
@@ -50,15 +51,6 @@ using extensions::AppWindow;
 
 namespace {
 
-void SetFullScreenCollectionBehavior(NSWindow* window, bool allow_fullscreen) {
-  NSWindowCollectionBehavior behavior = [window collectionBehavior];
-  if (allow_fullscreen)
-    behavior |= NSWindowCollectionBehaviorFullScreenPrimary;
-  else
-    behavior &= ~NSWindowCollectionBehaviorFullScreenPrimary;
-  [window setCollectionBehavior:behavior];
-}
-
 void SetWorkspacesCollectionBehavior(NSWindow* window, bool always_visible) {
   NSWindowCollectionBehavior behavior = [window collectionBehavior];
   if (always_visible)
@@ -472,7 +464,7 @@ void NativeAppWindowCocoa::SetFullscreen(int fullscreen_types) {
     // is disabled), temporarily enable it. It will be disabled again on leaving
     // fullscreen.
     if (fullscreen && !shows_fullscreen_controls_)
-      SetFullScreenCollectionBehavior(window(), true);
+      gfx::SetNSWindowCanFullscreen(window(), true);
     [window() toggleFullScreen:nil];
     return;
   }
@@ -871,7 +863,7 @@ void NativeAppWindowCocoa::WindowDidEnterFullscreen() {
 void NativeAppWindowCocoa::WindowDidExitFullscreen() {
   is_fullscreen_ = false;
   if (!shows_fullscreen_controls_)
-    SetFullScreenCollectionBehavior(window(), false);
+    gfx::SetNSWindowCanFullscreen(window(), false);
 
   app_window_->Restore();
   app_window_->OnNativeWindowChanged();
@@ -922,39 +914,15 @@ void NativeAppWindowCocoa::SetContentSizeConstraints(
   size_constraints_.set_minimum_size(min_size);
   size_constraints_.set_maximum_size(max_size);
 
-  gfx::Size minimum_size = size_constraints_.GetMinimumSize();
-  [window() setContentMinSize:NSMakeSize(minimum_size.width(),
-                                         minimum_size.height())];
-
-  gfx::Size maximum_size = size_constraints_.GetMaximumSize();
-  const int kUnboundedSize = extensions::SizeConstraints::kUnboundedSize;
-  CGFloat max_width = maximum_size.width() == kUnboundedSize ?
-      CGFLOAT_MAX : maximum_size.width();
-  CGFloat max_height = maximum_size.height() == kUnboundedSize ?
-      CGFLOAT_MAX : maximum_size.height();
-  [window() setContentMaxSize:NSMakeSize(max_width, max_height)];
-
   // Update the window controls.
   shows_resize_controls_ =
       is_resizable_ && !size_constraints_.HasFixedSize();
   shows_fullscreen_controls_ =
       is_resizable_ && !size_constraints_.HasMaximumSize() && has_frame_;
 
-  if (!is_fullscreen_) {
-    [window() setStyleMask:GetWindowStyleMask()];
-
-    // Set the window to participate in Lion Fullscreen mode. Setting this flag
-    // has no effect on Snow Leopard or earlier. UI controls for fullscreen are
-    // only shown for apps that have unbounded size.
-    if (base::mac::IsOSLionOrLater())
-      SetFullScreenCollectionBehavior(window(), shows_fullscreen_controls_);
-  }
-
-  if (has_frame_) {
-    [window() setShowsResizeIndicator:shows_resize_controls_];
-    [[window() standardWindowButton:NSWindowZoomButton]
-        setEnabled:shows_fullscreen_controls_];
-  }
+  gfx::ApplyNSWindowSizeConstraints(window(), min_size, max_size,
+                                    shows_resize_controls_,
+                                    shows_fullscreen_controls_);
 }
 
 void NativeAppWindowCocoa::SetAlwaysOnTop(bool always_on_top) {