MultiMonitor support

ui/aura/monitor_manager.h

Index: ui/aura/monitor_manager.h
diff --git a/ui/aura/monitor_manager.h b/ui/aura/monitor_manager.h
index 2b2471eb5c37ccfd81992e801ef4a8b985335df8..9e14927dc395859ca428929bc1fe1d4b6b15600e 100644
--- a/ui/aura/monitor_manager.h
+++ b/ui/aura/monitor_manager.h
@@ -6,6 +6,8 @@
 #define UI_AURA_MONITOR_MANAGER_H_
 #pragma once
 
+#include <string>
+
 #include "base/basictypes.h"
 #include "base/observer_list.h"
 #include "ui/aura/aura_export.h"
@@ -36,6 +38,20 @@ class AURA_EXPORT MonitorManager {
   MonitorManager();
   virtual ~MonitorManager();
 
+  static void set_use_fullscreen_host_window(bool use_fullscreen) {
+    use_fullscreen_host_window_ = use_fullscreen;
+  }
+  static bool use_fullscreen_host_window() {
+    return use_fullscreen_host_window_;
+  }
+
+  // Creates a monitor from string spec. 100+200-1440x800 creates monitor
+  // whose size is 1440x800 at the location (100, 200) in screen's coordinates.
+  // The location can be omitted and be just "1440x800", which creates
+  // monitor at the origin of the screen. An empty string creates
+  // the monitor with default size.
+  static Monitor* CreateMonitorFromSpec(const std::string& spec);
+
   // Adds/removes MonitorObservers.
   void AddObserver(MonitorObserver* observer);
   void RemoveObserver(MonitorObserver* observer);
@@ -45,7 +61,7 @@ class AURA_EXPORT MonitorManager {
   virtual void OnNativeMonitorResized(const gfx::Size& size) = 0;
 
   // Create a root window for primary monitor.
-  virtual RootWindow* CreateRootWindowForMonitor(const Monitor* monitor) = 0;
+  virtual RootWindow* CreateRootWindowForMonitor(Monitor* monitor) = 0;
 
   // Returns the monitor object nearest given |window|.
   virtual const Monitor* GetMonitorNearestWindow(
@@ -56,8 +72,9 @@ class AURA_EXPORT MonitorManager {
   virtual  const Monitor* GetMonitorNearestPoint(
       const gfx::Point& point) const = 0;
 
-  // Returns the monitor that is consiered "primary".
-  virtual const Monitor* GetPrimaryMonitor() const = 0;
+  // Returns the monitor at |index|. The monitor at 0 is consiered
+  // "primary".
+  virtual Monitor* GetMonitorAt(size_t index) = 0;
 
   virtual size_t GetNumMonitors() const = 0;
 
@@ -69,8 +86,12 @@ class AURA_EXPORT MonitorManager {
   void NotifyBoundsChanged(const Monitor* monitor);
 
  private:
-  ObserverList<MonitorObserver> observers_;
+  // If set before the RootWindow is created, the host window will cover the
+  // entire monitor.  Note that this can still be overridden via the
+  // switches::kAuraHostWindowSize flag.
+  static bool use_fullscreen_host_window_;
 
+  ObserverList<MonitorObserver> observers_;
   DISALLOW_COPY_AND_ASSIGN(MonitorManager);
 };