Take screenshot of active window

ash/test/test_screenshot_delegate.cc

Index: ash/test/test_screenshot_delegate.cc
diff --git a/ash/test/test_screenshot_delegate.cc b/ash/test/test_screenshot_delegate.cc
index 7ade6ba6a280589d418911abfdbb952a2c56724e..a5d86ae250e26f46e601f27828d2f013834c891b 100644
--- a/ash/test/test_screenshot_delegate.cc
+++ b/ash/test/test_screenshot_delegate.cc
@@ -10,6 +10,7 @@ namespace test {
 TestScreenshotDelegate::TestScreenshotDelegate()
     : handle_take_screenshot_count_(0),
       handle_take_partial_screenshot_count_(0),
+      handle_take_window_screenshot_count_(0),
       can_take_screenshot_(true) {
 }
 
@@ -26,6 +27,10 @@ void TestScreenshotDelegate::HandleTakePartialScreenshot(
   last_rect_ = rect;
 }
 
+void TestScreenshotDelegate::HandleTakeWindowScreenshot(aura::Window* window) {
+  handle_take_window_screenshot_count_++;
+}
+
 bool TestScreenshotDelegate::CanTakeScreenshot() {
   return can_take_screenshot_;
 }