Update some #includes in webkit/media for headers in the new Platform directory

webkit/media/cache_util_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 "webkit/media/cache_util.h"
 
 #include <string>
 
 #include "base/format_macros.h"
 #include "base/stringprintf.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURLResponse.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebURLResponse.h"
 
 using WebKit::WebString;
 using WebKit::WebURLResponse;
 
 namespace webkit_media {
 
 // Inputs & expected output for GetReasonsForUncacheability.
 struct GRFUTestCase {
   WebURLResponse::HTTPVersion version;
   int status_code;
@@ skipping 62 matching lines @@
     SCOPED_TRACE(StringPrintf("case: %" PRIuS
                               ", version: %d, code: %d, headers: %s",
                               i, tests[i].version, tests[i].status_code,
                               tests[i].headers));
     EXPECT_EQ(GetReasonsForUncacheability(CreateResponse(tests[i])),
               tests[i].expected_reasons);
   }
 }
 
 }  // namespace webkit_media