Add a X-Requested-With header to URL requests for PPAPI Flash (only).

content/renderer/pepper/pepper_url_request_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/compiler_specific.h"
 #include "content/public/common/user_agent.h"
 #include "content/public/test/render_view_test.h"
 #include "content/renderer/pepper/url_request_info_util.h"
 #include "ppapi/proxy/connection.h"
 #include "ppapi/proxy/url_request_info_resource.h"
@@ skipping 35 matching lines @@
 
 }  // namespace
 
 using ppapi::proxy::URLRequestInfoResource;
 using ppapi::URLRequestInfoData;
 
 namespace content {
 
 class URLRequestInfoTest : public RenderViewTest {
  public:
-  URLRequestInfoTest() : pp_instance_(1234) {}
+  // Note: using -1 as the instance value allows code in
+  // url_request_info_util.cc to detect that this is a test instance.
+  URLRequestInfoTest() : pp_instance_(-1) {}
 
   virtual void SetUp() OVERRIDE {
     RenderViewTest::SetUp();
     ppapi::ProxyLock::DisableLockingOnThreadForTest();
 
     test_globals_.GetResourceTracker()->DidCreateInstance(pp_instance_);
 
     // This resource doesn't do IPC, so a null connection is fine.
     info_ = new URLRequestInfoResource(
         ppapi::proxy::Connection(), pp_instance_, URLRequestInfoData());
@@ skipping 164 matching lines @@
   // Test that we can set multiple header fields using \n delimiter.
   EXPECT_TRUE(
       SetStringProperty(PP_URLREQUESTPROPERTY_HEADERS, "foo: bar\nbar: baz"));
   EXPECT_TRUE(IsExpected(GetHeaderValue("foo"), "bar"));
   EXPECT_TRUE(IsExpected(GetHeaderValue("bar"), "baz"));
 }
 
 // TODO(bbudge) Unit tests for AppendDataToBody, AppendFileToBody.
 
 }  // namespace content