1 files changed, 22 insertions, 0 deletions

diff --git a/chrome/browser/dock_info.h b/chrome/browser/dock_info.h
index dd94563..0774e6b 100644
--- a/chrome/browser/dock_info.h
+++ b/chrome/browser/dock_info.h
@@ -25,6 +25,15 @@ class Profile;
 // DockInfos are cheap and explicitly allow copy and assignment operators.
 class DockInfo {
  public:
+  class Factory {
+   public:
+    virtual DockInfo GetDockInfoAtPoint(const gfx::Point& screen_point,
+                                        const std::set<HWND>& ignore) = 0;
+
+    virtual HWND GetLocalProcessWindowAtPoint(const gfx::Point& screen_point,
+                                              const std::set<HWND>& ignore) = 0;
+  };
+
    // Possible dock positions.
   enum Type {
     // Indicates there is no valid dock position for the current location.
@@ -48,6 +57,9 @@ class DockInfo {
 
   DockInfo() : type_(NONE), hwnd_(NULL), in_enable_area_(false) {}
 
+  // Sets the factory.
+  static void set_factory(Factory* factory) { factory_ = factory; }
+
   // Size of the popup window shown to indicate a valid dock location.
   static int popup_width();
   static int popup_height();
@@ -58,6 +70,9 @@ class DockInfo {
   //
   // If there is no docking position for the specified location the returned
   // DockInfo has a type of NONE.
+  //
+  // If a Factory has been set, the method of the same name is invoked on the
+  // Factory to determine the DockInfo.
   static DockInfo GetDockInfoAtPoint(const gfx::Point& screen_point,
                                      const std::set<HWND>& ignore);
 
@@ -65,6 +80,9 @@ class DockInfo {
   // See GetDockInfoAtPoint for a description of |ignore|. This returns NULL if
   // there is no window from the current process at |screen_point|, or another
   // window obscures the topmost window from our process at |screen_point|.
+  //
+  // If a Factory has been set, the method of the same name is invoked on the
+  // Factory to determine the DockInfo.
   static HWND GetLocalProcessWindowAtPoint(const gfx::Point& screen_point,
                                            const std::set<HWND>& ignore);
 
@@ -139,6 +157,10 @@ class DockInfo {
   gfx::Point hot_spot_;
   gfx::Rect monitor_bounds_;
   bool in_enable_area_;
+
+  // Factory that creates DockInfos. By default this is NULL, which gives the
+  // default behavior.
+  static Factory* factory_;
 };
 
 #endif  // CHROME_BROWSER_DOCK_INFO_H_