Added a method to the WebDriverManager instance to retreive a named w…

…ebdriver instance.

serenity-core/src/main/java/net/thucydides/core/webdriver/ThucydidesWebdriverManager.java

@@ -101,6 +101,11 @@ public WebDriver getWebdriver() {
         return currentDriver.or(getThreadLocalWebDriver(configuration, webDriverFactory, inThisTestThread().getCurrentDriverName()));
     }
 
+    @Override
+    public WebdriverContext inContext(String context) {
+        return new WebdriverContext(this, context);
+    }
+
     private Optional<WebDriver> currentDriver = Optional.absent();
 
     @Override

serenity-core/src/main/java/net/thucydides/core/webdriver/WebdriverContext.java

@@ -0,0 +1,26 @@
+package net.thucydides.core.webdriver;
+
+import org.openqa.selenium.WebDriver;
+
+public class WebdriverContext {
+
+    private final WebdriverManager webdriverManager;
+    private final String context;
+
+    public WebdriverContext(WebdriverManager webdriverManager, String context) {
+        this.webdriverManager = webdriverManager;
+        this.context = context;
+    }
+
+    public WebDriver getWebdriver() {
+        String driverType = webdriverManager.getCurrentDriverName();
+        String driverName = driverType + ":" + context;
+        return webdriverManager.getWebdriver(driverName);
+    }
+
+    WebDriver getWebdriver(String driverType) {
+        String driverName = driverType + ":" + context;
+        return webdriverManager.getWebdriver(driverName);
+    }
+
+}

serenity-core/src/main/java/net/thucydides/core/webdriver/WebdriverManager.java

@@ -15,7 +15,9 @@ public interface WebdriverManager {
 
     WebDriver getWebdriver();
 
-    WebDriver getWebdriver(final String driver);
+    WebdriverContext inContext(String context);
+
+    WebDriver getWebdriver(String driver);
 
     String getCurrentDriverName();