Unit Test for Toggling of Encoding Auto-Detect

chrome/browser/automation/automation_provider.cc

Index: chrome/browser/automation/automation_provider.cc
===================================================================
--- chrome/browser/automation/automation_provider.cc	(revision 31188)
+++ chrome/browser/automation/automation_provider.cc	(working copy)
@@ -414,6 +414,8 @@
                         SetBooleanPreference)
     IPC_MESSAGE_HANDLER(AutomationMsg_GetPageCurrentEncoding,
                         GetPageCurrentEncoding)
+    IPC_MESSAGE_HANDLER(AutomationMsg_ToggleEncodingAutoDetect,
+                        ToggleEncodingAutoDetect)
     IPC_MESSAGE_HANDLER(AutomationMsg_OverrideEncoding, OverrideEncoding)
     IPC_MESSAGE_HANDLER(AutomationMsg_SavePackageShouldPromptUser,
                         SavePackageShouldPromptUser)
@@ -1864,8 +1866,8 @@
 
 void AutomationProvider::GetBooleanPreference(int handle,
                                               const std::wstring& name,
-                                              bool* success,
-                                              bool* value) {
+                                              bool* value,
+                                              bool* success) {
   *success = false;
   *value = false;
   if (browser_tracker_->ContainsHandle(handle)) {
@@ -1900,7 +1902,30 @@
   }
 }
 
-// Gets the current used encoding name of the page in the specified tab.
+// Toggles the encoding auto-detect setting.
+// While the setting is global, the tab needs to be specified as it may need
+// to be reloaded.
+void AutomationProvider::ToggleEncodingAutoDetect(int tab_handle,
+                                                  bool* success) {
+  *success = false;
+#if defined(OS_WIN)
+  if (tab_tracker_->ContainsHandle(tab_handle)) {
+    NavigationController* nav = tab_tracker_->GetResource(tab_handle);
+    Browser* browser = FindAndActivateTab(nav);
+    DCHECK(browser);
+
+    if (browser->command_updater()->IsCommandEnabled(IDC_ENCODING_MENU)) {
+      browser->ToggleEncodingAutoDetect();
+      *success = true;
+    }
+  }
+#else
+  // TODO(port): Enable when encoding-related parts of Browser are ported.
+  NOTIMPLEMENTED();
+#endif
+}
+
+// Sets the override encoding for the page in the specified tab.
 void AutomationProvider::OverrideEncoding(int tab_handle,
                                           const std::string& encoding_name,
                                           bool* success) {