[iOS/GN] Convert //ios/third_party/ochamcrest to build a framework.

ios/third_party/ochamcrest/BUILD.gn

 # Copyright 2016 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.
 
-# OCHamcrest sources contains import rules using relative file names
-# ("HCAssertThat.h") and other using paths in an installed framework
-# (<OCHamcrest/HCMatcher.h>). In order to build, copy all the sources
-# to <(SHARED_INTERMEDIATE_DIR)/ios/third_party/ochmacrest/OCHamcrest
-# so that both type of import work (another option considered was to
-# build forwarding headers but this required duplicating the list of
-# files in GN build and was ruled out).
-#
-# To avoid ODR violation, direct import of ios/third_party/ochamcrest
-# is forbidden in ios/DEPS and code should instead use import as if
-# OCHamcrest was in a framework (i.e. #import <OCHamcrest/OCHamcrest.h>).
-copy("ochamcrest_copy_files") {
+import("//build/config/ios/rules.gni")
+
+ios_framework_bundle("ochamcrest") {
   testonly = true
-  visibility = [ ":ochamcrest" ]
+  output_name = "OCHamcrest"
   sources = [
     "src/Source/Core/HCAssertThat.h",
     "src/Source/Core/HCAssertThat.m",
     "src/Source/Core/HCBaseDescription.h",
     "src/Source/Core/HCBaseDescription.m",
     "src/Source/Core/HCBaseMatcher.h",
     "src/Source/Core/HCBaseMatcher.m",
     "src/Source/Core/HCDescription.h",
     "src/Source/Core/HCDiagnosingMatcher.h",
     "src/Source/Core/HCDiagnosingMatcher.m",
@@ skipping 134 matching lines @@
     "src/Source/Library/Text/HCStringContainsInOrder.h",
     "src/Source/Library/Text/HCStringContainsInOrder.m",
     "src/Source/Library/Text/HCStringEndsWith.h",
     "src/Source/Library/Text/HCStringEndsWith.m",
     "src/Source/Library/Text/HCStringStartsWith.h",
     "src/Source/Library/Text/HCStringStartsWith.m",
     "src/Source/Library/Text/HCSubstringMatcher.h",
     "src/Source/Library/Text/HCSubstringMatcher.m",
     "src/Source/OCHamcrest.h",
   ]
-  outputs = [
-    "$root_gen_dir/ios/third_party/ochamcrest/OCHamcrest/{{source_file_part}}",
+  public_headers = [
+    "src/Source/Core/HCAssertThat.h",
+    "src/Source/Core/HCBaseDescription.h",
+    "src/Source/Core/HCBaseMatcher.h",
+    "src/Source/Core/HCDescription.h",
+    "src/Source/Core/HCDiagnosingMatcher.h",
+    "src/Source/Core/HCMatcher.h",
+    "src/Source/Core/HCSelfDescribing.h",
+    "src/Source/Core/HCStringDescription.h",
+    "src/Source/Core/Helpers/HCCollect.h",
+    "src/Source/Core/Helpers/HCInvocationMatcher.h",
+    "src/Source/Core/Helpers/HCRequireNonNilObject.h",
+    "src/Source/Core/Helpers/HCWrapInMatcher.h",
+    "src/Source/Core/Helpers/TestFailureReporters/HCTestFailure.h",
+    "src/Source/Core/Helpers/TestFailureReporters/HCTestFailureReporter.h",
+    "src/Source/Core/Helpers/TestFailureReporters/HCTestFailureReporterChain.h",
+    "src/Source/Library/Collection/HCEvery.h",
+    "src/Source/Library/Collection/HCHasCount.h",
+    "src/Source/Library/Collection/HCIsCollectionContaining.h",
+    "src/Source/Library/Collection/HCIsCollectionContainingInAnyOrder.h",
+    "src/Source/Library/Collection/HCIsCollectionContainingInOrder.h",
+    "src/Source/Library/Collection/HCIsCollectionContainingInRelativeOrder.h",
+    "src/Source/Library/Collection/HCIsCollectionOnlyContaining.h",
+    "src/Source/Library/Collection/HCIsDictionaryContaining.h",
+    "src/Source/Library/Collection/HCIsDictionaryContainingEntries.h",
+    "src/Source/Library/Collection/HCIsDictionaryContainingKey.h",
+    "src/Source/Library/Collection/HCIsDictionaryContainingValue.h",
+    "src/Source/Library/Collection/HCIsEmptyCollection.h",
+    "src/Source/Library/Collection/HCIsIn.h",
+    "src/Source/Library/Decorator/HCDescribedAs.h",
+    "src/Source/Library/Decorator/HCIs.h",
+    "src/Source/Library/Logical/HCAllOf.h",
+    "src/Source/Library/Logical/HCAnyOf.h",
+    "src/Source/Library/Logical/HCIsAnything.h",
+    "src/Source/Library/Logical/HCIsNot.h",
+    "src/Source/Library/Number/HCIsCloseTo.h",
+    "src/Source/Library/Number/HCIsEqualToNumber.h",
+    "src/Source/Library/Number/HCIsTrueFalse.h",
+    "src/Source/Library/Number/HCNumberAssert.h",
+    "src/Source/Library/Number/HCOrderingComparison.h",
+    "src/Source/Library/Object/HCArgumentCaptor.h",
+    "src/Source/Library/Object/HCClassMatcher.h",
+    "src/Source/Library/Object/HCConformsToProtocol.h",
+    "src/Source/Library/Object/HCHasDescription.h",
+    "src/Source/Library/Object/HCHasProperty.h",
+    "src/Source/Library/Object/HCIsEqual.h",
+    "src/Source/Library/Object/HCIsInstanceOf.h",
+    "src/Source/Library/Object/HCIsNil.h",
+    "src/Source/Library/Object/HCIsSame.h",
+    "src/Source/Library/Object/HCIsTypeOf.h",
+    "src/Source/Library/Object/HCThrowsException.h",
+    "src/Source/Library/Text/HCIsEqualIgnoringCase.h",
+    "src/Source/Library/Text/HCIsEqualIgnoringWhiteSpace.h",
+    "src/Source/Library/Text/HCStringContains.h",
+    "src/Source/Library/Text/HCStringContainsInOrder.h",
+    "src/Source/Library/Text/HCStringEndsWith.h",
+    "src/Source/Library/Text/HCStringStartsWith.h",
+    "src/Source/Library/Text/HCSubstringMatcher.h",
+    "src/Source/OCHamcrest.h",
   ]
+
+  libs = [
+    "Foundation.framework",
+    "UIKit.framework",
+  ]
+
+  configs += [ "//build/config/compiler:enable_arc" ]
+  configs -= [ "//build/config/gcc:symbol_visibility_hidden" ]
 }
-
-config("config") {
-  visibility = [ ":ochamcrest" ]
-  libs = [ "XCTest.framework" ]
-  include_dirs = [ "$root_gen_dir/ios/third_party/ochamcrest" ]
-}
-
-source_set("ochamcrest") {
-  testonly = true
-  configs += [
-    ":config",
-    "//build/config/compiler:enable_arc",
-    "//build/config/compiler:no_chromium_code",
-  ]
-  public_configs = [ ":config" ]
-  public_deps = [
-    ":ochamcrest_copy_files",
-  ]
-  sources = get_target_outputs(":ochamcrest_copy_files")
-}