Add an interface for Flash to clear its data.

chrome/test/base/in_process_browser_test.h

Index: chrome/test/base/in_process_browser_test.h
diff --git a/chrome/test/base/in_process_browser_test.h b/chrome/test/base/in_process_browser_test.h
index a44c9817841236d3edf71e95725991a747f85cb5..d99bfd677f81256402c935c8733744ee5158eee1 100644
--- a/chrome/test/base/in_process_browser_test.h
+++ b/chrome/test/base/in_process_browser_test.h
@@ -33,6 +33,7 @@ class CommandLine;
 class Profile;
 
 namespace content {
+class BrowserContext;
 class ContentRendererClient;
 class ResourceContext;
 }
@@ -97,8 +98,9 @@ class InProcessBrowserTest : public BrowserTestBase {
   // Returns the browser created by CreateBrowser.
   Browser* browser() const { return browser_; }
 
-  // Returns the ResourceContext from browser_. Needed because tests in content
-  // don't have access to Profile.
+  // Returns the Resource/BrowserContext from browser_. Needed because tests in
+  // content don't have access to Profile.
+  content::BrowserContext* GetBrowserContext();
   content::ResourceContext* GetResourceContext();
 
   // Convenience methods for adding tabs to a Browser.