Include referrer chain with inline install requests

chrome/browser/extensions/webstore_inline_installer.cc

Index: chrome/browser/extensions/webstore_inline_installer.cc
diff --git a/chrome/browser/extensions/webstore_inline_installer.cc b/chrome/browser/extensions/webstore_inline_installer.cc
index 9e992bcb64fc1bedc00a3d598de8f3acc041de6b..e8cbd31497e372fb599bc55531dd39e8d2c4a2d0 100644
--- a/chrome/browser/extensions/webstore_inline_installer.cc
+++ b/chrome/browser/extensions/webstore_inline_installer.cc
@@ -4,10 +4,17 @@
 
 #include "chrome/browser/extensions/webstore_inline_installer.h"
 
+#include <utility>
+
+#include "base/json/json_writer.h"
 #include "base/strings/stringprintf.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/webstore_data_fetcher.h"
+#include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
+#include "components/history/core/browser/history_service.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/web_contents.h"
 
@@ -95,6 +102,45 @@ bool WebstoreInlineInstaller::IsRequestorPermitted(
   return true;
 }
 
+void WebstoreInlineInstaller::StartWebstoreDataRequest(
+    WebstoreDataFetcher* fetcher, const history::RedirectList* redirect_list) {
+  if (redirect_list) {
+    base::DictionaryValue dictionary;
+    dictionary.SetString("id", id());
+    dictionary.SetString("referrer", requestor_url_.spec());
+    std::unique_ptr<base::ListValue> redirect_chain =
+        base::MakeUnique<base::ListValue>();
+    for (const GURL& url : *redirect_list) {
+      redirect_chain->AppendString(url.spec());
+    }
+    dictionary.Set("redirect_chain", std::move(redirect_chain));
+
+    std::unique_ptr<std::string> json = base::MakeUnique<std::string>();
+    base::JSONWriter::Write(dictionary, json.get());
+    fetcher->SetJsonPostData(std::move(json));
+  }
+  fetcher->Start();
+}
+
+void WebstoreInlineInstaller::OnBeforeWebstoreDataRequest(
+    WebstoreDataFetcher* fetcher) {
+  content::WebContents* web_contents = GetWebContents();
+  if (web_contents) {
+    history::HistoryService* history = HistoryServiceFactory::GetForProfile(
+        profile(), ServiceAccessType::EXPLICIT_ACCESS);
+    if (history) {
+      history->QueryRedirectsTo(
+          requestor_url_,
+          base::Bind(&WebstoreInlineInstaller::StartWebstoreDataRequest,
+                     this,
+                     base::Unretained(fetcher)),
+          &request_tracker_);
+      return;
+    }
+  }
+  StartWebstoreDataRequest(fetcher, nullptr);
+}
+
 bool WebstoreInlineInstaller::CheckRequestorAlive() const {
   // The frame or tab may have gone away - cancel installation in that case.
   return host_ != nullptr && web_contents() != nullptr;