DevTools: introduce WI.Resource.contentSize() and WI.Resource.lastModified()

third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resources/script-with-constant-last-modified.php

Index: third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resources/script-with-constant-last-modified.php
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/resources/random-cached.php b/third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resources/script-with-constant-last-modified.php
similarity index 56%
copy from third_party/WebKit/LayoutTests/http/tests/inspector/network/resources/random-cached.php
copy to third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resources/script-with-constant-last-modified.php
index 6b095ae94dbbbc703e15460de696d408dce16ea2..dbb2d28c6b12667c0f3ad822e4d2352ad1707fc7 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/resources/random-cached.php
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resources/script-with-constant-last-modified.php
@@ -1,18 +1,14 @@
 <?php
-    if ($_SERVER["HTTP_IF_MODIFIED_SINCE"]) {
-        header("HTTP/1.0 304 Not Modified");
-        exit;
-    }
-
     $max_age = 12 * 31 * 24 * 60 * 60; //one year
     $expires = gmdate(DATE_RFC1123, time() + $max_age);
-    $last_modified = gmdate(DATE_RFC1123, time() - $max_age);
+    // Dec 01, 1989, 8:00:00AM.
+    $last_modified = gmdate(DATE_RFC1123, 628502400);
 
     header("Cache-Control: public, max-age=" . 5*$max_age);
     header("Cache-control: max-age=0");
     header("Expires: " . $expires);
-    header("Content-Type: text/html");
+    header("Content-Type: text/javascript");
     header("Last-Modified: " . $last_modified);
 
-    echo(rand());
+    echo("console.log(\"Done.\");");
 ?>