Moved deleting the indexed db context to the WebKitContext destructor.

chrome/browser/in_process_webkit/webkit_context.h

Index: chrome/browser/in_process_webkit/webkit_context.h
diff --git a/chrome/browser/in_process_webkit/webkit_context.h b/chrome/browser/in_process_webkit/webkit_context.h
index be20825c02557b460d37fc89eee5823d741c4fd9..3251ab97323c9cbac0b69634b6c4d6aa61494b61 100644
--- a/chrome/browser/in_process_webkit/webkit_context.h
+++ b/chrome/browser/in_process_webkit/webkit_context.h
@@ -14,6 +14,8 @@
 #include "base/time.h"
 #include "chrome/browser/in_process_webkit/dom_storage_context.h"
 #include "chrome/browser/in_process_webkit/indexed_db_context.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
+#include "chrome/common/notification_observer.h"
 
 class Profile;
 
@@ -24,7 +26,9 @@ class Profile;
 //
 // This class is created on the UI thread and accessed on the UI, IO, and WebKit
 // threads.
-class WebKitContext : public base::RefCountedThreadSafe<WebKitContext> {
+class WebKitContext
+    : public base::RefCountedThreadSafe<WebKitContext>,
+      public NotificationObserver {
  public:
   explicit WebKitContext(Profile* profile);
 
@@ -60,6 +64,11 @@ class WebKitContext : public base::RefCountedThreadSafe<WebKitContext> {
   // called from any thread.
   void DeleteSessionStorageNamespace(int64 session_storage_namespace_id);
 
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
  private:
   friend class base::RefCountedThreadSafe<WebKitContext>;
   ~WebKitContext();
@@ -68,6 +77,14 @@ class WebKitContext : public base::RefCountedThreadSafe<WebKitContext> {
   const FilePath data_path_;
   const bool is_incognito_;
 
+  // True if the destructors of context objects should delete their files.
+  bool clear_local_state_on_exit_;
+
+  // The observer needs to extract the new value of the pref when notified.
+  Profile* profile_;
+
+  PrefChangeRegistrar pref_change_registrar_;
+
   scoped_ptr<DOMStorageContext> dom_storage_context_;
 
   scoped_ptr<IndexedDBContext> indexed_db_context_;