[iOS][omnibox] Parse App Store links as URLs in AutocompleteInput.

* Expands IsHandledProtocol() to include App Store links.
* Moves the app store scheme detector from one util file to another.

Fixed: 1421474
Change-Id: Ief4c10f85beff6cde54fb88c8681f43d335e9e2d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4324679
Commit-Queue: Mark Cogan <marq@chromium.org>
Reviewed-by: Mark Cogan <marq@chromium.org>
Auto-Submit: Stepan Khapugin <stkhapugin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1115599}

ios/chrome/browser/app_launcher/BUILD.gn

@@ -14,8 +14,6 @@ source_set("app_launcher") {
     "app_launcher_tab_helper.h",
     "app_launcher_tab_helper.mm",
     "app_launcher_tab_helper_delegate.h",
-    "app_launcher_util.h",
-    "app_launcher_util.mm",
     "app_launching_state.h",
     "app_launching_state.mm",
   ]

ios/chrome/browser/app_launcher/app_launcher_browser_agent.mm

@@ -8,7 +8,6 @@
 #import "base/functional/bind.h"
 #import "base/metrics/histogram_macros.h"
 #import "ios/chrome/browser/app_launcher/app_launcher_tab_helper.h"
-#import "ios/chrome/browser/app_launcher/app_launcher_util.h"
 #import "ios/chrome/browser/mailto_handler/mailto_handler_service.h"
 #import "ios/chrome/browser/mailto_handler/mailto_handler_service_factory.h"
 #import "ios/chrome/browser/main/browser.h"
@@ -17,6 +16,7 @@
 #import "ios/chrome/browser/overlays/public/overlay_request_queue.h"
 #import "ios/chrome/browser/overlays/public/overlay_response.h"
 #import "ios/chrome/browser/overlays/public/web_content_area/app_launcher_overlay.h"
+#import "ios/chrome/browser/url/url_util.h"
 #import "ios/chrome/browser/web_state_list/web_state_list.h"
 #import "ios/chrome/browser/web_state_list/web_state_opener.h"
 #import "ios/web/public/navigation/navigation_manager.h"

ios/chrome/browser/url/url_util.h

@@ -46,6 +46,15 @@ bool ShouldLoadUrlInDesktopMode(const GURL& url,
 // Method to set the scheme to callback Chrome iOS for testing.
 - (void)setCallbackSchemeForTesting:(NSString*)callbackScheme;
 
+// Returns a set of NSStrings that are URL schemes for iTunes Stores.
+NSSet<NSString*>* GetItmsSchemes();
+
+// Returns whether `url` has an app store scheme.
+bool UrlHasAppStoreScheme(const GURL& url);
+
+// Returns whether `scheme` is an app store scheme.
+bool SchemeIsAppStoreScheme(const std::string& scheme);
+
 @end
 
 #endif  // IOS_CHROME_BROWSER_URL_URL_UTIL_H_

ios/chrome/browser/url/url_util.mm

@@ -44,7 +44,7 @@ bool IsHandledProtocol(const std::string& scheme) {
   DCHECK_EQ(scheme, base::ToLowerASCII(scheme));
   return (scheme == url::kHttpScheme || scheme == url::kHttpsScheme ||
           scheme == url::kAboutScheme || scheme == url::kDataScheme ||
-          scheme == kChromeUIScheme);
+          scheme == kChromeUIScheme || SchemeIsAppStoreScheme(scheme));
 }
 
 bool ShouldLoadUrlInDesktopMode(const GURL& url,
@@ -104,4 +104,26 @@ - (void)setCallbackSchemeForTesting:(NSString*)scheme {
   _callbackScheme = [scheme copy];
 }
 
+NSSet<NSString*>* GetItmsSchemes() {
+  static NSSet<NSString*>* schemes;
+  static dispatch_once_t once;
+  dispatch_once(&once, ^{
+    schemes = [NSSet<NSString*>
+        setWithObjects:@"itms", @"itmss", @"itms-apps", @"itms-appss",
+                       // There's no evidence that itms-bookss is actually
+                       // supported, but over-inclusion costs less than
+                       // under-inclusion.
+                       @"itms-books", @"itms-bookss", nil];
+  });
+  return schemes;
+}
+
+bool UrlHasAppStoreScheme(const GURL& url) {
+  return SchemeIsAppStoreScheme(url.scheme());
+}
+
+bool SchemeIsAppStoreScheme(const std::string& scheme) {
+  return [GetItmsSchemes() containsObject:base::SysUTF8ToNSString(scheme)];
+}
+
 @end