[content shell] add support for entering/exiting fullscreen mode for layout test

content/shell/shell.cc

Index: content/shell/shell.cc
diff --git a/content/shell/shell.cc b/content/shell/shell.cc
index 8bed9bd2f65456f8a3f697d45c7c452c5e21bbf7..0fff828e2b8e703582c5dfc337b94d0acc51a167 100644
--- a/content/shell/shell.cc
+++ b/content/shell/shell.cc
@@ -41,7 +41,8 @@ base::Callback<void(Shell*)> Shell::shell_created_callback_;
 bool Shell::quit_message_loop_ = true;
 
 Shell::Shell(WebContents* web_contents)
-    : window_(NULL),
+    : is_fullscreen_(false),
+      window_(NULL),
       url_edit_view_(NULL)
 #if defined(OS_WIN) && !defined(USE_AURA)
       , default_edit_wnd_proc_(0)
@@ -191,6 +192,27 @@ void Shell::LoadingStateChanged(WebContents* source) {
   PlatformSetIsLoading(source->IsLoading());
 }
 
+void Shell::ToggleFullscreenModeForTab(WebContents* web_contents,
+                                       bool enter_fullscreen) {
+#if defined(OS_ANDROID)
+  PlatformToggleFullscreenModeForTab(web_contents, enter_fullscreen);
+#endif
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDumpRenderTree))
+    return;
+  if (is_fullscreen_ != enter_fullscreen) {
+    is_fullscreen_ = enter_fullscreen;
+    web_contents->GetRenderViewHost()->WasResized();
+  }
+}
+
+bool Shell::IsFullscreenForTabOrPending(const WebContents* web_contents) const {
+#if defined(OS_ANDROID)
+  return PlatformIsFullscreenForTabOrPending(web_contents);
+#else
+  return is_fullscreen_;
+#endif
+}
+
 void Shell::CloseContents(WebContents* source) {
   Close();
 }