Update references to Blink's Platform API headers

chrome/renderer/plugins/webview_plugin.cc

 // Copyright (c) 2013 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 "chrome/renderer/plugins/webview_plugin.h"
 
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "skia/ext/platform_canvas.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebURL.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebURLRequest.h"
-#include "third_party/WebKit/Source/Platform/chromium/public/WebURLResponse.h"
+#include "third_party/WebKit/public/platform/WebSize.h"
+#include "third_party/WebKit/public/platform/WebURL.h"
+#include "third_party/WebKit/public/platform/WebURLRequest.h"
+#include "third_party/WebKit/public/platform/WebURLResponse.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCursorInfo.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginContainer.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 #include "webkit/glue/webpreferences.h"
 
 using WebKit::WebCanvas;
@@ skipping 212 matching lines @@
   error.reason = -1;
   error.unreachableURL = request.url();
   return error;
 }
 
 void WebViewPlugin::didReceiveResponse(WebFrame* frame,
                                        unsigned identifier,
                                        const WebURLResponse& response) {
   WebFrameClient::didReceiveResponse(frame, identifier, response);
 }