storage: Remove unused IndexedDBContext::CopyOriginData

The last user is removed via:
https://chromium-review.googlesource.com/c/chromium/src/+/2048032

Bug: 1015214
Change-Id: Icb7a3011ba4edfa707d2abd292a1b4b7beda3eb6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2048503
Commit-Queue: enne <enne@chromium.org>
Reviewed-by: Daniel Murphy <dmurph@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742743}

content/browser/indexed_db/indexed_db_context_impl.cc

@@ -527,37 +527,6 @@ base::Time IndexedDBContextImpl::GetOriginLastModified(const Origin& origin) {
   return file_info.last_modified;
 }
 
-void IndexedDBContextImpl::CopyOriginData(const Origin& origin,
-                                          IndexedDBContext* dest_context) {
-  DCHECK(IDBTaskRunner()->RunsTasksInCurrentSequence());
-  if (is_incognito() || !HasOrigin(origin))
-    return;
-
-  IndexedDBContextImpl* dest_context_impl =
-      static_cast<IndexedDBContextImpl*>(dest_context);
-
-  ForceCloseSync(origin,
-                 storage::mojom::ForceCloseReason::FORCE_CLOSE_COPY_ORIGIN);
-
-  // Make sure we're not about to delete our own database.
-  CHECK_NE(dest_context_impl->data_path().value(), data_path().value());
-
-  // Delete any existing storage paths in the destination context.
-  // A previously failed migration may have left behind partially copied
-  // directories.
-  for (const auto& dest_path : dest_context_impl->GetStoragePaths(origin))
-    base::DeleteFileRecursively(dest_path);
-
-  base::FilePath dest_data_path = dest_context_impl->data_path();
-  base::CreateDirectory(dest_data_path);
-
-  for (const base::FilePath& src_data_path : GetStoragePaths(origin)) {
-    if (base::PathExists(src_data_path)) {
-      base::CopyDirectory(src_data_path, dest_data_path, true);
-    }
-  }
-}
-
 V2SchemaCorruptionStatus IndexedDBContextImpl::HasV2SchemaCorruption(
     const Origin& origin) {
   DCHECK(IDBTaskRunner()->RunsTasksInCurrentSequence());

content/browser/indexed_db/indexed_db_context_impl.h

@@ -112,8 +112,6 @@ class CONTENT_EXPORT IndexedDBContextImpl
 
   // IndexedDBContext implementation:
   base::SequencedTaskRunner* IDBTaskRunner() override;
-  void CopyOriginData(const url::Origin& origin,
-                      IndexedDBContext* dest_context) override;
 
   // Methods called by IndexedDBFactoryImpl or IndexedDBDispatcherHost for
   // quota support.

content/public/browser/indexed_db_context.h

@@ -18,10 +18,6 @@ namespace base {
 class SequencedTaskRunner;
 }
 
-namespace url {
-class Origin;
-}
-
 namespace content {
 
 // Represents the per-BrowserContext IndexedDB data.
@@ -36,11 +32,6 @@ class IndexedDBContext
   // Only call the below methods by posting to this IDBTaskRunner.
   virtual base::SequencedTaskRunner* IDBTaskRunner() = 0;
 
-  // Copies the indexed db files from this context to another. The
-  // indexed db directory in the destination context needs to be empty.
-  virtual void CopyOriginData(const url::Origin& origin,
-                              IndexedDBContext* dest_context) = 0;
-
  protected:
   friend class base::RefCountedDeleteOnSequence<IndexedDBContext>;
   friend class base::DeleteHelper<IndexedDBContext>;