PDFs viewed inside a <webview> should navigate the same as PDFs in tabs.

chrome/test/data/pdf/navigator_test.js

Index: chrome/test/data/pdf/navigator_test.js
diff --git a/chrome/test/data/pdf/navigator_test.js b/chrome/test/data/pdf/navigator_test.js
index b9624edfc9a230250857fd7afc526e78c39893d4..a97ef1b7e63469a6d3dad3d424bd9a3b05fc8b72 100644
--- a/chrome/test/data/pdf/navigator_test.js
+++ b/chrome/test/data/pdf/navigator_test.js
@@ -90,7 +90,7 @@ var tests = [
 
     var navigateInCurrentTabCallback = new NavigateInCurrentTabCallback();
     var navigateInNewTabCallback = new NavigateInNewTabCallback();
-    var navigator = new Navigator(url, viewport, paramsParser,
+    var navigator = new Navigator(0, url, viewport, paramsParser,
         navigateInCurrentTabCallback.callback,
         navigateInNewTabCallback.callback);
 
@@ -158,7 +158,7 @@ var tests = [
 
     var navigateInCurrentTabCallback = new NavigateInCurrentTabCallback();
     var navigateInNewTabCallback = new NavigateInNewTabCallback();
-    var navigator = new Navigator(url, viewport, paramsParser,
+    var navigator = new Navigator(0, url, viewport, paramsParser,
         navigateInCurrentTabCallback.callback,
         navigateInNewTabCallback.callback);
 
@@ -265,7 +265,7 @@ var tests = [
 
     var navigateInCurrentTabCallback = new NavigateInCurrentTabCallback();
     var navigateInNewTabCallback = new NavigateInNewTabCallback();
-    var navigator = new Navigator(url, viewport, paramsParser,
+    var navigator = new Navigator(0, url, viewport, paramsParser,
         navigateInCurrentTabCallback.callback,
         navigateInNewTabCallback.callback);