[Chromecast] Remove protected fields from CastService.

Classes that derive from this can choose to store these pointers
in private members, initialized at construction.

Merge-With: eureka-internal/480348

Bug: Internal b/138199589
Test: Build internal chromecast binaries and tests
Change-Id: I84723d6d298c9453d43c92ffd9f05b136d774b43
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2518715
Auto-Submit: Simeon Anfinrud <sanfin@chromium.org>
Commit-Queue: Luke Halliwell (slow) <halliwell@chromium.org>
Reviewed-by: Luke Halliwell (slow) <halliwell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824179}

chromecast/browser/cast_content_browser_client.cc

@@ -198,8 +198,7 @@ std::unique_ptr<CastService> CastContentBrowserClient::CreateCastService(
     PrefService* pref_service,
     media::VideoPlaneController* video_plane_controller,
     CastWindowManager* window_manager) {
-  return std::make_unique<CastServiceSimple>(browser_context, pref_service,
-                                             window_manager);
+  return std::make_unique<CastServiceSimple>(browser_context, window_manager);
 }
 
 media::VideoModeSwitcher* CastContentBrowserClient::GetVideoModeSwitcher() {

chromecast/browser/service/cast_service_simple.cc

@@ -40,10 +40,8 @@ GURL GetStartupURL() {
 }  // namespace
 
 CastServiceSimple::CastServiceSimple(content::BrowserContext* browser_context,
-                                     PrefService* pref_service,
                                      CastWindowManager* window_manager)
-    : CastService(browser_context, pref_service),
-      web_view_factory_(std::make_unique<CastWebViewFactory>(browser_context)),
+    : web_view_factory_(std::make_unique<CastWebViewFactory>(browser_context)),
       web_service_(std::make_unique<CastWebService>(browser_context,
                                                     web_view_factory_.get(),
                                                     window_manager)) {

chromecast/browser/service/cast_service_simple.h

@@ -14,6 +14,10 @@
 #include "chromecast/service/cast_service.h"
 #include "url/gurl.h"
 
+namespace content {
+class BrowserContext;
+}  // namespace content
+
 namespace chromecast {
 
 class CastWebService;
@@ -25,7 +29,6 @@ namespace shell {
 class CastServiceSimple : public CastService, public CastWebView::Delegate {
  public:
   CastServiceSimple(content::BrowserContext* browser_context,
-                    PrefService* pref_service,
                     CastWindowManager* window_manager);
   ~CastServiceSimple() override;
 

chromecast/service/cast_service.cc

@@ -11,14 +11,8 @@
 
 namespace chromecast {
 
-CastService::CastService(
-    content::BrowserContext* browser_context,
-    PrefService* pref_service)
-    : browser_context_(browser_context),
-      pref_service_(pref_service),
-      stopped_(true),
-      thread_checker_(new base::ThreadChecker()) {
-}
+CastService::CastService()
+    : stopped_(true), thread_checker_(new base::ThreadChecker()) {}
 
 CastService::~CastService() {
   DCHECK(thread_checker_->CalledOnValidThread());

chromecast/service/cast_service.h

@@ -10,16 +10,10 @@
 #include "base/callback.h"
 #include "base/macros.h"
 
-class PrefService;
-
 namespace base {
 class ThreadChecker;
 }
 
-namespace content {
-class BrowserContext;
-}
-
 namespace chromecast {
 
 class CastService {
@@ -38,8 +32,7 @@ class CastService {
   virtual void AccessibilityStateChanged(bool enabled);
 
  protected:
-  CastService(content::BrowserContext* browser_context,
-              PrefService* pref_service);
+  CastService();
 
   // Implementation-specific initialization. Initialization of cast service's
   // sub-components, and anything that requires IO operations should go here.
@@ -60,12 +53,7 @@ class CastService {
   // StartInternal() should be finalized here.
   virtual void StopInternal() = 0;
 
-  content::BrowserContext* browser_context() const { return browser_context_; }
-  PrefService* pref_service() const { return pref_service_; }
-
  private:
-  content::BrowserContext* const browser_context_;
-  PrefService* const pref_service_;
   bool stopped_;
   const std::unique_ptr<base::ThreadChecker> thread_checker_;