screenshot disabling policy

chrome/browser/ui/window_snapshot/window_snapshot_mac.mm

Index: chrome/browser/ui/window_snapshot/window_snapshot_mac.mm
diff --git a/chrome/browser/ui/window_snapshot/window_snapshot_mac.mm b/chrome/browser/ui/window_snapshot/window_snapshot_mac.mm
index b31baa051fb65f8fbc63f6664f6950b5abe5f1fd..b8023b0f4121da194dad961298c797be3fdaf04a 100644
--- a/chrome/browser/ui/window_snapshot/window_snapshot_mac.mm
+++ b/chrome/browser/ui/window_snapshot/window_snapshot_mac.mm
@@ -13,9 +13,9 @@
 
 namespace browser {
 
-bool GrabWindowSnapshot(gfx::NativeWindow window,
-    std::vector<unsigned char>* png_representation,
-    const gfx::Rect& snapshot_bounds) {
+bool GrabWindowSnapshotImpl(gfx::NativeWindow window,
+                            std::vector<unsigned char>* png_representation,
+                            const gfx::Rect& snapshot_bounds) {
   NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
   gfx::Rect screen_bounds = gfx::Rect(NSRectToCGRect([screen frame]));
   gfx::Rect window_bounds = gfx::Rect(NSRectToCGRect([window frame]));