Split up streams logic to prepare for PlzNavigate RDH changes.

chrome/browser/extensions/api/streams_private/streams_private_api.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
 
 #include <map>
 #include <string>
 
 #include "base/scoped_observer.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/extension_function.h"
 #include "extensions/browser/extension_registry_observer.h"
 
 namespace content {
 class BrowserContext;
 class StreamHandle;
+struct StreamInfo;
 }
 
 namespace extensions {
 class ExtensionRegistry;
 
 class StreamsPrivateAPI : public BrowserContextKeyedAPI,
                           public ExtensionRegistryObserver {
  public:
   // Convenience method to get the StreamsPrivateAPI for a BrowserContext.
   static StreamsPrivateAPI* Get(content::BrowserContext* context);
 
   explicit StreamsPrivateAPI(content::BrowserContext* context);
   virtual ~StreamsPrivateAPI();
 
   // Send the onExecuteMimeTypeHandler event to |extension_id|.
   // |web_contents| is used to determine the tabId where the document is being
   // opened. The data for the document will be readable from |stream|, and
   // should be |expected_content_size| bytes long. If the viewer is being opened
   // in a BrowserPlugin, specify a non-empty |view_id| of the plugin.
   void ExecuteMimeTypeHandler(const std::string& extension_id,
                               content::WebContents* web_contents,
-                              scoped_ptr<content::StreamHandle> stream,
+                              scoped_ptr<content::StreamInfo> stream,
                               const std::string& view_id,
                               int64 expected_content_size);
 
   void AbortStream(const std::string& extension_id,
                    const GURL& stream_url,
                    const base::Closure& callback);
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<StreamsPrivateAPI>* GetFactoryInstance();
 
@@ skipping 40 matching lines @@
 
  private:
   void OnClose();
 
   std::string stream_url_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_