Support GrabWindowSnapshot with no g_browser_process

ui/window_snapshot/window_snapshot_mac.mm

Index: ui/window_snapshot/window_snapshot_mac.mm
diff --git a/chrome/browser/ui/window_snapshot/window_snapshot_mac.mm b/ui/window_snapshot/window_snapshot_mac.mm
similarity index 86%
rename from chrome/browser/ui/window_snapshot/window_snapshot_mac.mm
rename to ui/window_snapshot/window_snapshot_mac.mm
index ba4aef79df6ea9b8c96c39ef43aa44f7c8a51c95..5930952d78b05897f01e85a0ca662c95b06eb6c4 100644
--- a/chrome/browser/ui/window_snapshot/window_snapshot_mac.mm
+++ b/ui/window_snapshot/window_snapshot_mac.mm
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ui/window_snapshot/window_snapshot.h"
+#include "ui/window_snapshot/window_snapshot.h"
 
 #import <Cocoa/Cocoa.h>
 
@@ -11,11 +11,11 @@
 #include "base/memory/scoped_nsobject.h"
 #include "ui/gfx/rect.h"
 
-namespace chrome {
+namespace ui {
 
-bool GrabWindowSnapshotImpl(gfx::NativeWindow window,
-                            std::vector<unsigned char>* png_representation,
-                            const gfx::Rect& snapshot_bounds) {
+bool GrabWindowSnapshot(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]));
@@ -58,4 +58,4 @@ bool GrabWindowSnapshotImpl(gfx::NativeWindow window,
   return true;
 }
 
-}  // namespace chrome
+}  // namespace ui