[Proximity Auth] Create one ProximityAuthClient per profile, rather than one global one.

components/proximity_auth/ble/proximity_auth_ble_system_unittest.cc

 // Copyright 2015 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 "components/proximity_auth/ble/proximity_auth_ble_system.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/proximity_auth/connection_finder.h"
 #include "components/proximity_auth/proximity_auth_client.h"
@@ skipping 20 matching lines @@
 class ProximityAuthBleSystemTestable : public ProximityAuthBleSystem {
  public:
   class MockScreenlockBridgeAdapter
       : public ProximityAuthBleSystem::ScreenlockBridgeAdapter {
    public:
     MockScreenlockBridgeAdapter() {}
     ~MockScreenlockBridgeAdapter() {}
 
     MOCK_METHOD1(AddObserver, void(ScreenlockBridge::Observer*));
     MOCK_METHOD1(RemoveObserver, void(ScreenlockBridge::Observer*));
-    MOCK_METHOD1(Unlock, void(content::BrowserContext*));
+    MOCK_METHOD1(Unlock, void(ProximityAuthClient*));
   };
 
   ProximityAuthBleSystemTestable(ScreenlockBridgeAdapter* screenlock_bridge)
-      : ProximityAuthBleSystem(screenlock_bridge, nullptr) {}
+      : ProximityAuthBleSystem(make_scoped_ptr(screenlock_bridge), nullptr) {}
 
   ConnectionFinder* CreateConnectionFinder() override {
     return new NiceMock<MockConnectionFinder>();
   }
 };
 
 class ProximityAuthBleSystemTest : public testing::Test {
  protected:
   ProximityAuthBleSystemTest()
       : screenlock_bridge_(new NiceMock<
@@ skipping 41 matching lines @@
   SetExpectations();
 
   ProximityAuthBleSystemTestable proximity_auth_system(screenlock_bridge_);
   proximity_auth_system.OnScreenDidLock(
       ScreenlockBridge::LockHandler::OTHER_SCREEN);
   proximity_auth_system.OnScreenDidUnlock(
       ScreenlockBridge::LockHandler::OTHER_SCREEN);
 }
 
 }  // namespace proximity_auth