Fix "unreachable code" warnings (MSVC warning 4702) in chrome/browser/.

chrome/browser/extensions/api/input/input.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/input/input.h"
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string16.h"
@@ skipping 19 matching lines @@
 
 namespace extensions {
 
 bool VirtualKeyboardPrivateInsertTextFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   base::string16 text;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &text));
 
   return keyboard::InsertText(text, ash::Shell::GetPrimaryRootWindow());
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 bool VirtualKeyboardPrivateMoveCursorFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
       keyboard::switches::kEnableSwipeSelection)) {
     return false;
   }
 
   int swipe_direction;
   int modifier_flags;
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &swipe_direction));
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(1, &modifier_flags));
 
   return keyboard::MoveCursor(
       swipe_direction,
       modifier_flags,
       ash::Shell::GetPrimaryRootWindow()->GetHost()->dispatcher());
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 bool VirtualKeyboardPrivateSendKeyEventFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   base::Value* options_value = NULL;
   base::DictionaryValue* params = NULL;
   std::string type;
   int char_value;
   int key_code;
   std::string key_name;
   int modifiers;
 
   EXTENSION_FUNCTION_VALIDATE(args_->Get(0, &options_value));
   EXTENSION_FUNCTION_VALIDATE(options_value->GetAsDictionary(&params));
   EXTENSION_FUNCTION_VALIDATE(params->GetString("type", &type));
   EXTENSION_FUNCTION_VALIDATE(params->GetInteger("charValue", &char_value));
   EXTENSION_FUNCTION_VALIDATE(params->GetInteger("keyCode", &key_code));
   EXTENSION_FUNCTION_VALIDATE(params->GetString("keyName", &key_name));
   EXTENSION_FUNCTION_VALIDATE(params->GetInteger("modifiers", &modifiers));
 
   return keyboard::SendKeyEvent(
       type,
       char_value,
       key_code,
       key_name,
       modifiers,
       ash::Shell::GetPrimaryRootWindow()->GetHost()->dispatcher());
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 bool VirtualKeyboardPrivateHideKeyboardFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   UMA_HISTOGRAM_ENUMERATION(
       "VirtualKeyboard.KeyboardControlEvent",
       keyboard::KEYBOARD_CONTROL_HIDE_USER,
       keyboard::KEYBOARD_CONTROL_MAX);
 
   // Pass HIDE_REASON_MANUAL since calls to HideKeyboard as part of this API
   // would be user generated.
   ash::Shell::GetInstance()->keyboard_controller()->HideKeyboard(
       keyboard::KeyboardController::HIDE_REASON_MANUAL);
 
   return true;
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 bool VirtualKeyboardPrivateLockKeyboardFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   bool lock;
   EXTENSION_FUNCTION_VALIDATE(args_->GetBoolean(0, &lock));
-
   ash::Shell::GetInstance()->keyboard_controller()->set_lock_keyboard(lock);
-
   return true;
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 bool VirtualKeyboardPrivateKeyboardLoadedFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   keyboard::MarkKeyboardLoadFinished();
-
   base::UserMetricsAction("VirtualKeyboardLoaded");
-
   return true;
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 bool VirtualKeyboardPrivateGetKeyboardConfigFunction::RunImpl() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 #if defined(USE_ASH)
   base::DictionaryValue* results = new base::DictionaryValue();
   results->SetString("layout", keyboard::GetKeyboardLayout());
   results->SetBoolean("a11ymode", keyboard::GetAccessibilityKeyboardEnabled());
   SetResult(results);
   return true;
-#endif
+#else
   error_ = kNotYetImplementedError;
   return false;
+#endif
 }
 
 InputAPI::InputAPI(content::BrowserContext* context) {}
 
 InputAPI::~InputAPI() {
 }
 
 static base::LazyInstance<BrowserContextKeyedAPIFactory<InputAPI> > g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 // static
 BrowserContextKeyedAPIFactory<InputAPI>* InputAPI::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 }  // namespace extensions