[StorageMonitor] Move StorageMonitor ownership to BrowserProcessImpl

chrome/browser/storage_monitor/storage_monitor.cc

Index: chrome/browser/storage_monitor/storage_monitor.cc
diff --git a/chrome/browser/storage_monitor/storage_monitor.cc b/chrome/browser/storage_monitor/storage_monitor.cc
index 6d27d3bdfc41534b2230ecf419f39675faa089cc..d4123b9f1f2f678ee698fad3596ab87a519c5252 100644
--- a/chrome/browser/storage_monitor/storage_monitor.cc
+++ b/chrome/browser/storage_monitor/storage_monitor.cc
@@ -6,13 +6,12 @@
 
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/storage_monitor/removable_storage_observer.h"
 #include "chrome/browser/storage_monitor/transient_device_ids.h"
 
 namespace chrome {
 
-static StorageMonitor* g_storage_monitor = NULL;
-
 StorageMonitor::Receiver::~Receiver() {
 }
 
@@ -46,7 +45,7 @@ void StorageMonitor::ReceiverImpl::MarkInitialized() {
 }
 
 StorageMonitor* StorageMonitor::GetInstance() {
-  return g_storage_monitor;
+  return g_browser_process->storage_monitor();
 }
 
 std::vector<StorageInfo> StorageMonitor::GetAllAvailableStorages() const {
@@ -117,18 +116,9 @@ StorageMonitor::StorageMonitor()
       initialized_(false),
       transient_device_ids_(new TransientDeviceIds) {
   receiver_.reset(new ReceiverImpl(this));
-
-  DCHECK(!g_storage_monitor);
-  g_storage_monitor = this;
 }
 
 StorageMonitor::~StorageMonitor() {
-  g_storage_monitor = NULL;
-}
-
-// static
-void StorageMonitor::RemoveSingletonForTesting() {
-  g_storage_monitor = NULL;
 }
 
 StorageMonitor::Receiver* StorageMonitor::receiver() const {