Remove BrowserFileSystemContext class and merge it into SandboxedFileSystemContext

BUG=60243
TEST=none

Review URL: http://codereview.chromium.org/5633008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69089 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 42 insertions, 12 deletions

diff --git a/webkit/fileapi/sandboxed_file_system_context.cc b/webkit/fileapi/sandboxed_file_system_context.cc
index b3b009e..16232d5 100644
--- a/webkit/fileapi/sandboxed_file_system_context.cc
+++ b/webkit/fileapi/sandboxed_file_system_context.cc
@@ -13,11 +13,13 @@ namespace fileapi {
 
 SandboxedFileSystemContext::SandboxedFileSystemContext(
     scoped_refptr<base::MessageLoopProxy> file_message_loop,
+    scoped_refptr<base::MessageLoopProxy> io_message_loop,
     const FilePath& profile_path,
     bool is_incognito,
     bool allow_file_access,
     bool unlimited_quota)
     : file_message_loop_(file_message_loop),
+      io_message_loop_(io_message_loop),
       path_manager_(new FileSystemPathManager(
           file_message_loop, profile_path, is_incognito, allow_file_access)),
       quota_manager_(new FileSystemQuotaManager(
@@ -28,6 +30,7 @@ SandboxedFileSystemContext::~SandboxedFileSystemContext() {
 }
 
 void SandboxedFileSystemContext::Shutdown() {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
   path_manager_.reset();
   quota_manager_.reset();
 }
@@ -45,4 +48,22 @@ void SandboxedFileSystemContext::DeleteDataForOriginOnFileThread(
   file_util::Delete(path_for_origin, true /* recursive */);
 }
 
+void SandboxedFileSystemContext::SetOriginQuotaUnlimited(const GURL& url) {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  quota_manager()->SetOriginQuotaUnlimited(url);
+}
+
+void SandboxedFileSystemContext::ResetOriginQuotaUnlimited(const GURL& url) {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  quota_manager()->ResetOriginQuotaUnlimited(url);
+}
+
+void SandboxedFileSystemContext::DeleteOnCorrectThread() const {
+  if (!io_message_loop_->BelongsToCurrentThread()) {
+    io_message_loop_->DeleteSoon(FROM_HERE, this);
+    return;
+  }
+  delete this;
+}
+
 }  // namespace fileapi
diff --git a/webkit/fileapi/sandboxed_file_system_context.h b/webkit/fileapi/sandboxed_file_system_context.h
index 6c72bc0..fcb90bb 100644
--- a/webkit/fileapi/sandboxed_file_system_context.h
+++ b/webkit/fileapi/sandboxed_file_system_context.h
@@ -24,10 +24,13 @@ class SandboxedFileSystemContext;
 struct DefaultContextDeleter;
 
 // This class keeps and provides a sandboxed file system context.
-class SandboxedFileSystemContext {
+class SandboxedFileSystemContext
+    : public base::RefCountedThreadSafe<SandboxedFileSystemContext,
+                                        DefaultContextDeleter> {
  public:
   SandboxedFileSystemContext(
       scoped_refptr<base::MessageLoopProxy> file_message_loop,
+      scoped_refptr<base::MessageLoopProxy> io_message_loop,
       const FilePath& profile_path,
       bool is_incognito,
       bool allow_file_access_from_files,
@@ -38,6 +41,10 @@ class SandboxedFileSystemContext {
 
   void DeleteDataForOriginOnFileThread(const GURL& origin_url);
 
+  // Quota related methods.
+  void SetOriginQuotaUnlimited(const GURL& url);
+  void ResetOriginQuotaUnlimited(const GURL& url);
+
   FileSystemPathManager* path_manager() { return path_manager_.get(); }
   FileSystemQuotaManager* quota_manager() { return quota_manager_.get(); }
 
@@ -47,12 +54,19 @@ class SandboxedFileSystemContext {
 
   bool allow_file_access_from_files_;
   scoped_refptr<base::MessageLoopProxy> file_message_loop_;
+  scoped_refptr<base::MessageLoopProxy> io_message_loop_;
   scoped_ptr<FileSystemPathManager> path_manager_;
   scoped_ptr<FileSystemQuotaManager> quota_manager_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(SandboxedFileSystemContext);
 };
 
+struct DefaultContextDeleter {
+  static void Destruct(const SandboxedFileSystemContext* context) {
+    context->DeleteOnCorrectThread();
+  }
+};
+
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_SANDBOXED_FILE_SYSTEM_CONTEXT_H_
diff --git a/webkit/fileapi/sandboxed_file_system_operation.cc b/webkit/fileapi/sandboxed_file_system_operation.cc
index ef7c752..d866512 100644
--- a/webkit/fileapi/sandboxed_file_system_operation.cc
+++ b/webkit/fileapi/sandboxed_file_system_operation.cc
@@ -15,7 +15,7 @@ namespace fileapi {
 SandboxedFileSystemOperation::SandboxedFileSystemOperation(
     FileSystemCallbackDispatcher* dispatcher,
     scoped_refptr<base::MessageLoopProxy> proxy,
-    SandboxedFileSystemContext* file_system_context)
+    scoped_refptr<SandboxedFileSystemContext> file_system_context)
     : FileSystemOperation(dispatcher, proxy),
       file_system_context_(file_system_context),
       callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
diff --git a/webkit/fileapi/sandboxed_file_system_operation.h b/webkit/fileapi/sandboxed_file_system_operation.h
index c6c905d..d3e1ce9 100644
--- a/webkit/fileapi/sandboxed_file_system_operation.h
+++ b/webkit/fileapi/sandboxed_file_system_operation.h
@@ -21,14 +21,10 @@ class SandboxedFileSystemContext;
 //    via |file_system_context|.
 class SandboxedFileSystemOperation : public FileSystemOperation {
  public:
-  // This class doesn't hold a reference or ownership of |file_system_context|.
-  // It is the caller's responsibility to keep the pointer alive *until*
-  // it calls any of the operation methods.  The |file_system_context| won't be
-  // used in the callback path and can be deleted after the operation is
-  // made (e.g. after one of CreateFile, CreateDirectory, Copy, etc is called).
-  SandboxedFileSystemOperation(FileSystemCallbackDispatcher* dispatcher,
-                               scoped_refptr<base::MessageLoopProxy> proxy,
-                               SandboxedFileSystemContext* file_system_context);
+  SandboxedFileSystemOperation(
+      FileSystemCallbackDispatcher* dispatcher,
+      scoped_refptr<base::MessageLoopProxy> proxy,
+      scoped_refptr<SandboxedFileSystemContext> file_system_context);
   virtual ~SandboxedFileSystemOperation();
 
   void OpenFileSystem(const GURL& origin_url,
@@ -94,8 +90,7 @@ class SandboxedFileSystemOperation : public FileSystemOperation {
                                     bool create,
                                     int64 growth);
 
-  // Not owned.  See the comment at the constructor.
-  SandboxedFileSystemContext* file_system_context_;
+  scoped_refptr<SandboxedFileSystemContext> file_system_context_;
 
   base::ScopedCallbackFactory<SandboxedFileSystemOperation> callback_factory_;