browser: Remove fullscreen functions and have callers call FullscreenController directly.

chrome/browser/ui/browser_commands.cc

Index: chrome/browser/ui/browser_commands.cc
diff --git a/chrome/browser/ui/browser_commands.cc b/chrome/browser/ui/browser_commands.cc
index 4f3586e8fa6ebfc447a789af96965693990e7b6f..664b0678af28274c360d111fd79a2653c905a3e3 100644
--- a/chrome/browser/ui/browser_commands.cc
+++ b/chrome/browser/ui/browser_commands.cc
@@ -36,6 +36,7 @@
 #include "chrome/browser/ui/constrained_window_tab_helper.h"
 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
+#include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
 #include "chrome/browser/ui/omnibox/location_bar.h"
 #include "chrome/browser/ui/search/search.h"
 #include "chrome/browser/ui/search/search_model.h"
@@ -843,6 +844,10 @@ void ToggleSpeechInput(Browser* browser) {
   GetActiveWebContents(browser)->GetRenderViewHost()->ToggleSpeechInput();
 }
 
+void ToggleFullscreenMode(Browser* browser) {
+  browser->fullscreen_controller()->ToggleFullscreenMode();
+}
+
 void ViewSource(Browser* browser, TabContents* contents) {
   DCHECK(contents);