No bug

r=mkaply, a=blizzard
We can remove lDisplayDepth as a result of removing RequiresInvertedMask

gfx/src/os2/nsDeviceContextOS2.cpp

@@ -71,7 +71,7 @@ nsDeviceContextOS2 :: nsDeviceContextOS2()
 
 #ifdef XP_OS2 // OS2TODO - GET RID OF THIS!
    // Init module if necessary
-   if( !gModuleData.lDisplayDepth)
+   if( !gModuleData.hpsScreen)
       gModuleData.Init();
 #endif
 

gfx/src/os2/nsGfxDefs.cpp

@@ -156,8 +156,7 @@ void PMERROR( const char *api)
    PR_LogPrint( "%s failed, error = 0x%X\n", api, usError);
 }
 
-nsGfxModuleData::nsGfxModuleData() : hModResources(0), hpsScreen(0),
-                                     lDisplayDepth(0)
+nsGfxModuleData::nsGfxModuleData() : hModResources(0), hpsScreen(0)
 {
 }
 
@@ -179,8 +178,6 @@ void nsGfxModuleData::Init()
 
    // get screen bit-depth
    hpsScreen = ::WinGetScreenPS (HWND_DESKTOP);
-   HDC hdc = GFX (::GpiQueryDevice (hpsScreen), HDC_ERROR);
-   GFX (::DevQueryCaps (hdc, CAPS_COLOR_BITCOUNT, 1, &lDisplayDepth), FALSE);
 }
 
 nsGfxModuleData::~nsGfxModuleData()

gfx/src/os2/nsGfxDefs.h

@@ -104,7 +104,6 @@ struct nsGfxModuleData
 {
    HMODULE hModResources;
    HPS     hpsScreen;
-   LONG    lDisplayDepth;
 
    nsGfxModuleData();
   ~nsGfxModuleData();