Include referrer chain with inline install requests.

chrome/browser/extensions/webstore_installer_test.h

Index: chrome/browser/extensions/webstore_installer_test.h
diff --git a/chrome/browser/extensions/webstore_installer_test.h b/chrome/browser/extensions/webstore_installer_test.h
index 4c67ef2bd7a24bbe99b9d61a9de8a22f82c5bb98..b311bb2ee33cba2818574abd58cd5106ec39c104 100644
--- a/chrome/browser/extensions/webstore_installer_test.h
+++ b/chrome/browser/extensions/webstore_installer_test.h
@@ -21,6 +21,12 @@ namespace contents {
 class WebContents;
 }
 
+namespace net {
+namespace test_server {
+struct HttpRequest;
+}
+}
+
 class WebstoreInstallerTest : public ExtensionBrowserTest {
  public:
   WebstoreInstallerTest(const std::string& webstore_domain,
@@ -34,6 +40,8 @@ class WebstoreInstallerTest : public ExtensionBrowserTest {
   void SetUpInProcessBrowserTestFixture() override;
   void SetUpOnMainThread() override;
 
+  void MonitorServerRequest(const net::test_server::HttpRequest& request);
+
  protected:
   GURL GenerateTestServerUrl(const std::string& domain,
                              const std::string& page_filename);
@@ -54,6 +62,10 @@ class WebstoreInstallerTest : public ExtensionBrowserTest {
   // Runs a test without waiting for any results from the renderer.
   void RunTestAsync(const std::string& test_function_name);
 
+  // Can be overridden to inspect requests to the embedded test server.
+  virtual void ProcessServerRequest(
+      const net::test_server::HttpRequest& request);
+
   // Configures command line switches to simulate a user accepting the install
   // prompt.
   void AutoAcceptInstall();