Upstream about:welcome page for Android.

chrome/common/url_constants.h

Index: chrome/common/url_constants.h
diff --git a/chrome/common/url_constants.h b/chrome/common/url_constants.h
index 2b72c4c8f5803023bf71888c189b73534c4558d9..44bf01e5f2ccc418b27cdcc0aec6fe6ae3717796 100644
--- a/chrome/common/url_constants.h
+++ b/chrome/common/url_constants.h
@@ -70,6 +70,10 @@ extern const char kChromeUIUberURL[];
 extern const char kChromeUIUberFrameURL[];
 extern const char kChromeUIVersionURL[];
 
+#if defined(OS_ANDROID)
+extern const char kChromeUIWelcomeURL[];
+#endif
+
 #if defined(OS_CHROMEOS)
 extern const char kChromeUIActivationMessage[];
 extern const char kChromeUIChooseMobileNetworkURL[];
@@ -196,6 +200,10 @@ extern const char kChromeUIWorkersHost[];
 extern const char kChromeUIScreenshotPath[];
 extern const char kChromeUIThemePath[];
 
+#if defined(OS_ANDROID)
+extern const char kChromeUIWelcomeHost[];
+#endif
+
 #if defined(OS_LINUX) || defined(OS_OPENBSD)
 extern const char kChromeUILinuxProxyConfigHost[];
 extern const char kChromeUISandboxHost[];
@@ -390,6 +398,7 @@ extern const char kExtensionResourceScheme[];
 #if defined(OS_CHROMEOS)
 extern const char kDriveScheme[];
 #endif
+
 #if defined(OS_ANDROID)
 extern const char kContentScheme[];
 // Special Android file paths.