[ios] Convert GN libs lists to frameworks in //ios/web.

GN recently added support for Apple frameworks to link, rather than
overloading the libs lists. This pulls .frameworks out of the libs
lists, so that GN can stop supporting .frameworks in libs in the
future.

Bug: 1052560
Change-Id: Ic845c9310296d8e6527df7d9d0afa104f526ef61
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2276262
Auto-Submit: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#784418}

ios/web/common/BUILD.gn

@@ -30,7 +30,7 @@ source_set("common") {
 
   public_deps = [ ":features" ]
 
-  libs = [ "UIKit.framework" ]
+  frameworks = [ "UIKit.framework" ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }
@@ -57,7 +57,7 @@ source_set("web_view_creation_util") {
     "//ios/web/web_state/ui:wk_web_view_configuration_provider",
   ]
 
-  libs = [ "UIKit.framework" ]
+  frameworks = [ "UIKit.framework" ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }

ios/web/download/BUILD.gn

@@ -24,7 +24,7 @@ source_set("download") {
     "download_task_impl.mm",
   ]
 
-  libs = [ "UIKit.framework" ]
+  frameworks = [ "UIKit.framework" ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }
@@ -43,7 +43,7 @@ source_set("download_cookies") {
     "download_session_cookie_storage.mm",
   ]
 
-  libs = [ "Foundation.framework" ]
+  frameworks = [ "Foundation.framework" ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }

ios/web/init/BUILD.gn

@@ -29,7 +29,7 @@ source_set("init") {
     "//ui/gfx/geometry",
   ]
 
-  libs = [
+  frameworks = [
     "Foundation.framework",
     "UIKit.framework",
   ]

ios/web/public/download/BUILD.gn

@@ -17,7 +17,7 @@ source_set("download") {
     "download_task_observer.h",
   ]
 
-  libs = [ "Foundation.framework" ]
+  frameworks = [ "Foundation.framework" ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }

ios/web/shell/BUILD.gn

@@ -65,7 +65,7 @@ source_set("shell") {
     "//ui/base",
   ]
 
-  libs = [
+  frameworks = [
     "CoreGraphics.framework",
     "CoreFoundation.framework",
     "Foundation.framework",

ios/web/shell/test/BUILD.gn

@@ -113,7 +113,7 @@ source_set("eg_tests+eg2") {
     "//net:test_support",
   ]
 
-  libs = [ "UIKit.framework" ]
+  frameworks = [ "UIKit.framework" ]
 }
 
 ios_eg2_test_app_host("ios_web_shell_eg2tests") {