[Chromecast] Moves persistent UMA client ID handling to common code.

chromecast/browser/cast_content_browser_client.h

 // Copyright 2014 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 CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_
 #define CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/content_browser_client.h"
 
 namespace breakpad {
 class CrashHandlerHostLinux;
 }
 
 namespace content {
 class BrowserMessageFilter;
 }
 
 namespace media {
 class AudioManagerFactory;
 }
 
-namespace net {
-class HostResolver;
+namespace metrics {
+class MetricsService;
 }
 
 namespace chromecast {
 namespace media {
 class MediaPipelineBackend;
 struct MediaPipelineDeviceParams;
 }
 
 namespace shell {
 
 class CastBrowserMainParts;
 class URLRequestContextFactory;
 
-class CastContentBrowserClient: public content::ContentBrowserClient {
+class CastContentBrowserClient : public content::ContentBrowserClient {
  public:
   // Creates an implementation of CastContentBrowserClient. Platform should
   // link in an implementation as needed.
   static scoped_ptr<CastContentBrowserClient> Create();
 
   ~CastContentBrowserClient() override;
 
   // Appends extra command line arguments before launching a new process.
   virtual void AppendExtraCommandLineSwitches(base::CommandLine* command_line);
 
   // Returns any BrowserMessageFilters that should be added when launching a
   // new render process.
   virtual std::vector<scoped_refptr<content::BrowserMessageFilter>>
   GetBrowserMessageFilters();
 
   // Provide an AudioManagerFactory instance for WebAudio playback.
   virtual scoped_ptr<::media::AudioManagerFactory> CreateAudioManagerFactory();
 
 #if !defined(OS_ANDROID)
   // Creates a MediaPipelineDevice (CMA backend) for media playback, called
   // once per media player instance.
   virtual scoped_ptr<media::MediaPipelineBackend> CreateMediaPipelineBackend(
       const media::MediaPipelineDeviceParams& params);
 #endif
 
+  // Invoked when the metrics client ID changes.
+  virtual void SetMetricsClientId(const std::string& client_id);
+
+  // Allows registration of extra metrics providers.
+  virtual void RegisterMetricsProviders(
+      ::metrics::MetricsService* metrics_service);
+
   // content::ContentBrowserClient implementation:
   content::BrowserMainParts* CreateBrowserMainParts(
       const content::MainFunctionParams& parameters) override;
   void RenderProcessWillLaunch(content::RenderProcessHost* host) override;
   net::URLRequestContextGetter* CreateRequestContext(
       content::BrowserContext* browser_context,
       content::ProtocolHandlerMap* protocol_handlers,
       content::URLRequestInterceptorScopedVector request_interceptors)
       override;
   bool IsHandledURL(const GURL& url) override;
@@ skipping 82 matching lines @@
 
   scoped_ptr<URLRequestContextFactory> url_request_context_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastContentBrowserClient);
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_CAST_CONTENT_BROWSER_CLIENT_H_