Move ProfileKeyedAPI implementations to take BrowserContext in the constructor (part 1).

chrome/browser/extensions/api/cast_channel/cast_channel_api.cc

Index: chrome/browser/extensions/api/cast_channel/cast_channel_api.cc
diff --git a/chrome/browser/extensions/api/cast_channel/cast_channel_api.cc b/chrome/browser/extensions/api/cast_channel/cast_channel_api.cc
index c0d5e57fd95a71ff6e61599f20f45f4191510496..e6dc135ff6dd428cf76f16442f9190065c396245 100644
--- a/chrome/browser/extensions/api/cast_channel/cast_channel_api.cc
+++ b/chrome/browser/extensions/api/cast_channel/cast_channel_api.cc
@@ -10,7 +10,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/cast_channel/cast_socket.h"
 #include "chrome/browser/net/chrome_net_log.h"
-#include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_system.h"
@@ -44,14 +43,14 @@ std::string ParamToString(const T& info) {
 
 }  // namespace
 
-CastChannelAPI::CastChannelAPI(Profile* profile)
-  : profile_(profile) {
-  DCHECK(profile_);
+CastChannelAPI::CastChannelAPI(content::BrowserContext* context)
+    : browser_context_(context) {
+  DCHECK(browser_context_);
 }
 
 // static
-CastChannelAPI* CastChannelAPI::Get(Profile* profile) {
-  return ProfileKeyedAPIFactory<CastChannelAPI>::GetForProfile(profile);
+CastChannelAPI* CastChannelAPI::Get(content::BrowserContext* context) {
+  return ProfileKeyedAPIFactory<CastChannelAPI>::GetForProfile(context);
 }
 
 static base::LazyInstance<ProfileKeyedAPIFactory<CastChannelAPI> > g_factory =
@@ -85,8 +84,9 @@ void CastChannelAPI::OnError(const CastSocket* socket,
   channel_info.error_state = error;
   scoped_ptr<base::ListValue> results = OnError::Create(channel_info);
   scoped_ptr<Event> event(new Event(OnError::kEventName, results.Pass()));
-  extensions::ExtensionSystem::Get(profile_)->event_router()->
-    DispatchEventToExtension(socket->owner_extension_id(), event.Pass());
+  extensions::ExtensionSystem::Get(browser_context_)
+      ->event_router()
+      ->DispatchEventToExtension(socket->owner_extension_id(), event.Pass());
 }
 
 void CastChannelAPI::OnMessage(const CastSocket* socket,
@@ -99,8 +99,9 @@ void CastChannelAPI::OnMessage(const CastSocket* socket,
   VLOG(1) << "Sending message " << ParamToString(message_info)
           << " to channel " << ParamToString(channel_info);
   scoped_ptr<Event> event(new Event(OnMessage::kEventName, results.Pass()));
-  extensions::ExtensionSystem::Get(profile_)->event_router()->
-    DispatchEventToExtension(socket->owner_extension_id(), event.Pass());
+  extensions::ExtensionSystem::Get(browser_context_)
+      ->event_router()
+      ->DispatchEventToExtension(socket->owner_extension_id(), event.Pass());
 }
 
 CastChannelAPI::~CastChannelAPI() {}