Merge branch 'id-fix-viewing-diff-of-a-large-blob' into 'master'

Load 10mb of a diff instead of 100kb

See merge request gitlab-org/gitlab!25176

lib/gitlab/diff/file.rb

@@ -353,11 +353,7 @@ module Gitlab
       def fetch_blob(sha, path)
         return unless sha
 
-        # Load only patch_hard_limit_bytes number of bytes for the blob
-        # Because otherwise, it is too large to be displayed
-        Blob.lazy(
-          repository.project, sha, path,
-            blob_size_limit: Gitlab::Git::Diff.patch_hard_limit_bytes)
+        Blob.lazy(repository.project, sha, path)
       end
 
       def total_blob_lines(blob)

spec/lib/gitlab/diff/file_spec.rb

@@ -175,7 +175,7 @@ describe Gitlab::Diff::File do
         [diff_file.new_content_sha, diff_file.new_path], [diff_file.old_content_sha, diff_file.old_path]
       ]
 
-      expect(project.repository).to receive(:blobs_at).with(items, blob_size_limit: 100 * 1024).and_call_original
+      expect(project.repository).to receive(:blobs_at).with(items, blob_size_limit: 10.megabytes).and_call_original
 
       old_data = diff_file.old_blob.data
       data = diff_file.new_blob.data