Adding experimental maximize mode (behind a flag)

chrome/browser/ui/window_sizer/window_sizer_ash.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 "chrome/browser/ui/window_sizer/window_sizer.h"
 
 #include "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/wm/window_cycle_controller.h"
 #include "ash/wm/window_util.h"
@@ skipping 141 matching lines @@
                                        ui::WindowShowState* show_state) const {
   DCHECK(show_state);
   DCHECK(bounds_in_screen);
 
   if (browser_ &&
       browser_->host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH) {
     return false;
   }
   bounds_in_screen->SetRect(0, 0, 0, 0);
 
+  // Experiment: Force the maximize mode for all windows.
+  if (ash::Shell::IsForcedMaximizeMode()) {
+    // Exceptions: Do not maximize popups and do not maximize windowed V1 apps
+    // which explicitly specify a |show_state| (they might be tuned for a
+    // particular resolution / type).
+    bool is_tabbed = browser_ && browser_->is_type_tabbed();
+    bool is_popup = browser_ && browser_->is_type_popup();
+    if (!is_popup && (is_tabbed || *show_state == ui::SHOW_STATE_DEFAULT))
+      *show_state = ui::SHOW_STATE_MAXIMIZED;
+  }
+
   ui::WindowShowState passed_show_state = *show_state;
   if (!GetSavedWindowBounds(bounds_in_screen, show_state))
     GetDefaultWindowBounds(bounds_in_screen);
 
   if (browser_ && browser_->is_type_tabbed()) {
     aura::RootWindow* active = ash::Shell::GetActiveRootWindow();
     // Always open new window in the active display.
     gfx::Rect active_area = active->GetBoundsInScreen();
     gfx::Rect work_area =
         monitor_info_provider_->GetMonitorWorkAreaMatching(active_area);
@@ skipping 66 matching lines @@
   if (default_width > kMaximumWindowWidth) {
     // The window should get centered on the screen and not follow the grid.
     offset_x = (work_area.width() - kMaximumWindowWidth) / 2;
     default_width = kMaximumWindowWidth;
   }
   default_bounds->SetRect(work_area.x() + offset_x,
                           work_area.y() + kDesktopBorderSize,
                           default_width,
                           default_height);
 }