Add extension API to change window show state using chrome.windows.update().

chrome/browser/extensions/extension_tabs_apitest.cc

Index: chrome/browser/extensions/extension_tabs_apitest.cc
diff --git a/chrome/browser/extensions/extension_tabs_apitest.cc b/chrome/browser/extensions/extension_tabs_apitest.cc
index c0e4f0e984e7fb03c57b2d9544243b4e031ee29e..bff8fb84b45e15ce8277a807d9ff4bb4bc11aa7c 100644
--- a/chrome/browser/extensions/extension_tabs_apitest.cc
+++ b/chrome/browser/extensions/extension_tabs_apitest.cc
@@ -26,9 +26,12 @@
   DISABLED_FocusWindowDoesNotExitFullscreen
 #define MAYBE_UpdateWindowSizeExitsFullscreen \
   DISABLED_UpdateWindowSizeExitsFullscreen
+#define MAYBE_UpdateWindowShowState \
+  DISABLED_UpdateWindowShowState
 #else
 #define MAYBE_FocusWindowDoesNotExitFullscreen FocusWindowDoesNotExitFullscreen
 #define MAYBE_UpdateWindowSizeExitsFullscreen UpdateWindowSizeExitsFullscreen
+#define MAYBE_UpdateWindowShowState UpdateWindowShowState
 #endif
 
 // In the touch build, this fails reliably. http://crbug.com/85191
@@ -205,6 +208,10 @@ IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FocusWindowDoesNotUnmaximize) {
 }
 #endif  // OS_WIN
 
+IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MAYBE_UpdateWindowShowState) {
+  ASSERT_TRUE(RunExtensionTest("window_update/show_state")) << message_;
+}
+
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, IncognitoDisabledByPref) {
   IncognitoModePrefs::SetAvailability(browser()->profile()->GetPrefs(),
                                       IncognitoModePrefs::DISABLED);