Support StreamCopyOrMoveImpl in sandbox.

StreamCopyOrMoveImpl has some issue.
* Return infelicity error code.
* Don't notify to observer.
This issue is fixed in Issue 522543002 so we can support it in sandbox.

BUG=360088
TEST=content_unittests passed

Review URL: https://codereview.chromium.org/541363002

Cr-Commit-Position: refs/heads/master@{#293677}

content/browser/fileapi/file_system_operation_impl_unittest.cc

@@ -612,8 +612,8 @@ TEST_F(FileSystemOperationImplTest, TestCopySuccessSrcFileAndOverwrite) {
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(base::File::FILE_OK, status());
   EXPECT_TRUE(FileExists("dest"));
-  EXPECT_EQ(2, quota_manager_proxy()->notify_storage_accessed_count());
-  EXPECT_EQ(1, change_observer()->get_and_reset_modify_file_count());
+  EXPECT_EQ(4, quota_manager_proxy()->notify_storage_accessed_count());
+  EXPECT_EQ(2, change_observer()->get_and_reset_modify_file_count());
 
   EXPECT_TRUE(change_observer()->HasNoChange());
 }
@@ -628,9 +628,10 @@ TEST_F(FileSystemOperationImplTest, TestCopySuccessSrcFileAndNew) {
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(base::File::FILE_OK, status());
   EXPECT_TRUE(FileExists("new"));
-  EXPECT_EQ(2, quota_manager_proxy()->notify_storage_accessed_count());
+  EXPECT_EQ(4, quota_manager_proxy()->notify_storage_accessed_count());
 
-  EXPECT_EQ(1, change_observer()->get_and_reset_create_file_from_count());
+  EXPECT_EQ(1, change_observer()->get_and_reset_create_file_count());
+  EXPECT_EQ(1, change_observer()->get_and_reset_modify_file_count());
   EXPECT_TRUE(change_observer()->HasNoChange());
 }
 
@@ -694,7 +695,8 @@ TEST_F(FileSystemOperationImplTest, TestCopySuccessSrcDirRecursive) {
 
   EXPECT_EQ(2, change_observer()->get_and_reset_create_directory_count());
   EXPECT_EQ(1, change_observer()->get_and_reset_remove_directory_count());
-  EXPECT_EQ(1, change_observer()->get_and_reset_create_file_from_count());
+  EXPECT_EQ(1, change_observer()->get_and_reset_create_file_count());
+  EXPECT_EQ(1, change_observer()->get_and_reset_modify_file_count());
   EXPECT_TRUE(change_observer()->HasNoChange());
 }
 

storage/browser/fileapi/sandbox_file_system_backend.cc

@@ -128,7 +128,7 @@ bool SandboxFileSystemBackend::SupportsStreaming(
 
 bool SandboxFileSystemBackend::HasInplaceCopyImplementation(
     storage::FileSystemType type) const {
-  return true;
+  return false;
 }
 
 scoped_ptr<storage::FileStreamReader>