[ios] Adds support for Find in Page to the new architecture.

ios/clean/chrome/browser/ui/commands/find_in_page_commands.h

Index: ios/clean/chrome/browser/ui/commands/find_in_page_commands.h
diff --git a/ios/clean/chrome/browser/ui/commands/find_in_page_commands.h b/ios/clean/chrome/browser/ui/commands/find_in_page_commands.h
new file mode 100644
index 0000000000000000000000000000000000000000..641a87d80e03b47501d4b2bfcf9fcb01b6cd99f6
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/commands/find_in_page_commands.h
@@ -0,0 +1,25 @@
+// Copyright 2017 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.
+
+#ifndef IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_FIND_IN_PAGE_COMMANDS_H_
+#define IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_FIND_IN_PAGE_COMMANDS_H_
+
+// Command protocol for commands relating to Find In Page.
+// (Commands are for communicating into or within the coordinator layer).
+@protocol FindInPageCommands
+// Show the find in page UI.
+- (void)showFindInPage;
+
+// Searches for the given string in the current page.
+- (void)findStringInPage:(NSString*)searchTerm;
+
+// Finds the previous and next matches, using the current search string.
+- (void)findNextInPage;
+- (void)findPreviousInPage;
+
+// Hide the find in page UI.

[lpromero, 2017/03/14 17:17:55]

Hides

+- (void)hideFindInPage;
+@end
+
+#endif  // IOS_CLEAN_CHROME_BROWSER_UI_COMMANDS_FIND_IN_PAGE_COMMANDS_H_