Add Applescript commands to enter presentation mode

chrome/browser/ui/cocoa/applescript/window_applescript.mm

Index: chrome/browser/ui/cocoa/applescript/window_applescript.mm
diff --git a/chrome/browser/ui/cocoa/applescript/window_applescript.mm b/chrome/browser/ui/cocoa/applescript/window_applescript.mm
index 623a5117ef83d7f016478a447876516ef8e1a63b..b17a8761d8f0c6b199865ef54633c25380f8be1d 100644
--- a/chrome/browser/ui/cocoa/applescript/window_applescript.mm
+++ b/chrome/browser/ui/cocoa/applescript/window_applescript.mm
@@ -244,4 +244,23 @@
     browser_->window()->Close();
 }
 
+- (NSNumber*)presenting {
+  BOOL presentingValue = NO;
+  if (browser_->window())
+    presentingValue = browser_->window()->InPresentationMode();
+  return [NSNumber numberWithBool:presentingValue];
+}
+
+- (void)handlesEnterPresentationMode:(NSScriptCommand*)command {
+  if (browser_->window()) {
+    browser_->window()->EnterPresentationMode(
+        GURL(), FEB_TYPE_FULLSCREEN_EXIT_INSTRUCTION);
+  }
+}
+
+- (void)handlesExitPresentationMode:(NSScriptCommand*)command {
+  if (browser_->window())
+    browser_->window()->ExitPresentationMode();
+}
+
 @end