Revert of Simplify BrowserContext by removing redundant methods.

content/public/browser/browser_context.h

Index: content/public/browser/browser_context.h
diff --git a/content/public/browser/browser_context.h b/content/public/browser/browser_context.h
index 699b8ca2e87f4ff391f3f9eefc6cea0c46dba4e4..fb34686cfaa4b0ace61327a564284ae590d8f399 100644
--- a/content/public/browser/browser_context.h
+++ b/content/public/browser/browser_context.h
@@ -99,6 +99,8 @@
       std::unique_ptr<base::hash_set<base::FilePath>> active_paths,
       const base::Closure& done);
 
+  // DON'T USE THIS. GetDefaultStoragePartition() is going away.
+  // Use GetStoragePartition() instead. Ask ajwong@ if you have problems.
   static content::StoragePartition* GetDefaultStoragePartition(
       BrowserContext* browser_context);
 
@@ -163,6 +165,12 @@
 
   // Return whether this context is incognito. Default is false.
   virtual bool IsOffTheRecord() const = 0;
+
+  // Returns the request context information associated with this context.  Call
+  // this only on the UI thread, since it can send notifications that should
+  // happen on the UI thread.
+  // TODO(creis): Remove this version in favor of the one below.
+  virtual net::URLRequestContextGetter* GetRequestContext() = 0;
 
   // Returns the default request context for media resources associated with
   // this context.