[iOS] Upstream files in //ios/chrome/browser/autofill

ios/chrome/browser/passwords/password_generation_utils.mm

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ios/chrome/browser/passwords/password_generation_utils.h"
+
+#include "base/i18n/rtl.h"
+#include "ios/chrome/browser/ui/ui_util.h"
+
+namespace passwords {
+
+namespace {
+
+const CGFloat kPadding = IsIPadIdiom() ? 16 : 8;
+
+// The actual implementation of |RunPipeline| that begins with the first block
+// in |blocks|.
+void RunSearchPipeline(NSArray* blocks,
+                       PipelineCompletionBlock on_complete,
+                       NSUInteger from_index) {
+  if (from_index == [blocks count]) {
+    on_complete(NSNotFound);
+    return;
+  }
+  PipelineBlock block = blocks[from_index];
+  block(^(BOOL success) {
+    if (success)
+      on_complete(from_index);
+    else
+      RunSearchPipeline(blocks, on_complete, from_index + 1);
+  });
+}
+
+}  // namespace
+
+CGRect GetGenerationAccessoryFrame(CGRect outer_frame, CGRect inner_frame) {
+  CGFloat x = kPadding;
+  if (base::i18n::IsRTL())
+    x = CGRectGetWidth(outer_frame) - CGRectGetWidth(inner_frame) - kPadding;
+  const CGFloat y =
+      (CGRectGetHeight(outer_frame) - CGRectGetHeight(inner_frame)) / 2.0;
+  inner_frame.origin = CGPointMake(x, y);
+  return inner_frame;
+}
+
+void RunSearchPipeline(NSArray* blocks, PipelineCompletionBlock on_complete) {
+  RunSearchPipeline(blocks, on_complete, 0);
+}
+
+}  // namespace passwords