don't set the background color to a default gray. this gets rid of the incredible hulk effect for text areas. also, get rid of the extra XQueryPointer() in motion events. this gets rid of another server round trip. documented in bug #27380. r=pavlov

widget/src/gtk/nsWidget.cpp

@@ -1615,8 +1615,6 @@ nsWidget::OnMotionNotifySignal(GdkEventMotion * aGdkMotionEvent)
   {
     x = (gint) aGdkMotionEvent->x;
     y = (gint) aGdkMotionEvent->y;
- 
-    gdk_window_get_pointer(aGdkMotionEvent->window, &x, &y, nsnull);
 
     event.point.x = nscoord(x);
     event.point.y = nscoord(y);

widget/src/gtk/nsWindow.cpp

@@ -1208,8 +1208,7 @@ nsWindow::HandleGDKEvent(GdkEvent *event)
                               GDK_FOCUS_CHANGE_MASK |
                               GDK_KEY_PRESS_MASK |
                               GDK_KEY_RELEASE_MASK |
-                              GDK_POINTER_MOTION_MASK |
-                              GDK_POINTER_MOTION_HINT_MASK);
+                              GDK_POINTER_MOTION_MASK);
     
     gdk_window_set_events(((GdkEventButton*)event)->window,
                           mask);
@@ -1707,8 +1706,7 @@ NS_METHOD nsWindow::CreateNative(GtkObject *parentWidget)
                         GDK_FOCUS_CHANGE_MASK |
                         GDK_KEY_PRESS_MASK |
                         GDK_KEY_RELEASE_MASK |
-                        GDK_POINTER_MOTION_MASK |
-                        GDK_POINTER_MOTION_HINT_MASK);
+                        GDK_POINTER_MOTION_MASK);
 
   NS_ASSERTION(mSuperWin,"no super window!");
   if (!mSuperWin) return NS_ERROR_FAILURE;
@@ -1727,7 +1725,7 @@ NS_METHOD nsWindow::CreateNative(GtkObject *parentWidget)
   // set user data on the bin_window so we can find the superwin for it.
   gdk_window_set_user_data (mSuperWin->bin_window, (gpointer)mSuperWin);
 
-  SetBackgroundColor(NS_RGB(192,192,192));
+  gdk_window_set_back_pixmap(mSuperWin->bin_window, NULL, 0);
 
   // XXX fix this later...
   if (mIsToplevel)
@@ -1847,18 +1845,8 @@ NS_IMETHODIMP nsWindow::Scroll(PRInt32 aDx, PRInt32 aDy, nsRect *aClipRect)
   mUpdateArea->Offset(aDx, aDy);
 
   if (mSuperWin) {
-    // save the old backing color
-    nscolor currentColor = GetBackgroundColor();
-    // this isn't too painful to do right before a scroll.
-    // as owen says "it's just 12 bytes sent to the server."
-    // and it makes scrolling look a lot better while still
-    // preserving the gray color when you drag another window
-    // on top or when just creating a window
-    gdk_window_set_back_pixmap(mSuperWin->bin_window, NULL, 0);
     // scroll baby, scroll!
     gdk_superwin_scroll(mSuperWin, aDx, aDy);
-    // reset the color
-    SetBackgroundColor(currentColor);
   }
   return NS_OK;
 }