Clear cookies, local storage and databases when an extension gets uninstalled.

BUG=27938
TEST=Unittest in extension_service_unitttest.cc

Review URL: http://codereview.chromium.org/1095003
Patch from Mattias Nissler.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42467 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 21 insertions, 0 deletions

diff --git a/chrome/browser/in_process_webkit/dom_storage_context.cc b/chrome/browser/in_process_webkit/dom_storage_context.cc
index 279ecb5..bea4611 100644
--- a/chrome/browser/in_process_webkit/dom_storage_context.cc
+++ b/chrome/browser/in_process_webkit/dom_storage_context.cc
@@ -190,6 +190,11 @@ void DOMStorageContext::DeleteLocalStorageFile(const FilePath& file_path) {
   file_util::Delete(file_path, false);
 }
 
+void DOMStorageContext::DeleteLocalStorageForOrigin(const string16& origin_id) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::WEBKIT));
+  DeleteLocalStorageFile(GetLocalStorageFilePath(origin_id));
+}
+
 void DOMStorageContext::DeleteAllLocalStorageFiles() {
   DCHECK(ChromeThread::CurrentlyOn(ChromeThread::WEBKIT));
 
@@ -264,3 +269,12 @@ void DOMStorageContext::ClearLocalState(const FilePath& profile_path,
     }
   }
 }
+
+FilePath DOMStorageContext::GetLocalStorageFilePath(
+    const string16& origin_id) const {
+  FilePath storageDir = webkit_context_->data_path().Append(
+      DOMStorageContext::kLocalStorageDirectory);
+  FilePath::StringType id =
+      webkit_glue::WebStringToFilePathString(origin_id);
+  return storageDir.Append(id.append(kLocalStorageExtension));
+}
diff --git a/chrome/browser/in_process_webkit/dom_storage_context.h b/chrome/browser/in_process_webkit/dom_storage_context.h
index 81276c2..2b9e1d1 100644
--- a/chrome/browser/in_process_webkit/dom_storage_context.h
+++ b/chrome/browser/in_process_webkit/dom_storage_context.h
@@ -9,6 +9,7 @@
 #include <set>
 
 #include "base/file_path.h"
+#include "base/string16.h"
 #include "base/time.h"
 
 class DOMStorageArea;
@@ -70,6 +71,9 @@ class DOMStorageContext {
   // Deletes a single local storage file.
   void DeleteLocalStorageFile(const FilePath& file_path);
 
+  // Deletes the local storage file for the given origin.
+  void DeleteLocalStorageForOrigin(const string16& origin_id);
+
   // Deletes all local storage files.
   void DeleteAllLocalStorageFiles();
 
@@ -83,6 +87,9 @@ class DOMStorageContext {
   static void ClearLocalState(const FilePath& profile_path,
                               const char* url_scheme_to_be_skipped);
 
+  // Get the file name of the local storage file for the given origin.
+  FilePath GetLocalStorageFilePath(const string16& origin_id) const;
+
  private:
   // Get the local storage instance.  The object is owned by this class.
   DOMStorageNamespace* CreateLocalStorage();