Reland r59972: Eagerly set the IO loop used for OCSP.

chrome/common/net/url_request_context_getter.h

Index: chrome/common/net/url_request_context_getter.h
diff --git a/chrome/common/net/url_request_context_getter.h b/chrome/common/net/url_request_context_getter.h
index 34aa6689fed529f736bb0123bfecf0518024ecec..8b51a0bce5d4180b61d990482d27a26be8da8cfa 100644
--- a/chrome/common/net/url_request_context_getter.h
+++ b/chrome/common/net/url_request_context_getter.h
@@ -35,15 +35,32 @@ class URLRequestContextGetter
   // may be used).
   virtual scoped_refptr<base::MessageLoopProxy> GetIOMessageLoopProxy() = 0;
 
+  // Controls whether or not the URLRequestContextGetter considers itself to be
+  // the the "main" URLRequestContextGetter.  Note that each Profile will have a
+  // "default" URLRequestContextGetter.  Therefore, "is_main" refers to the
+  // default URLRequestContextGetter for the "main" Profile.
+  // TODO(willchan): Move this code to ChromeURLRequestContextGetter, since this
+  // ia a browser process specific concept.
+  void set_is_main(bool is_main) { is_main_ = is_main; }
+
  protected:
   friend class DeleteTask<URLRequestContextGetter>;
   friend struct URLRequestContextGetterTraits;
 
+  URLRequestContextGetter() : is_main_(false) {}
+
   virtual ~URLRequestContextGetter() {}
+
+  bool is_main() const { return is_main_; }
+
  private:
   // OnDestruct is meant to ensure deletion on the thread on which the request
   // IO happens.
   void OnDestruct();
+
+  // Indicates whether or not this is the default URLRequestContextGetter for
+  // the main Profile.
+  bool is_main_;
 };
 
 struct URLRequestContextGetterTraits {
@@ -53,4 +70,3 @@ struct URLRequestContextGetterTraits {
 };
 
 #endif  // CHROME_COMMON_NET_URL_REQUEST_CONTEXT_GETTER_H_
-