Revert of Compile fuzzer sources in standalone builds. (patchset #3 id:40001 of https://codereview.chromium.org/2480043002/ )

Reason for revert:
Breaking the tree:
https://build.chromium.org/p/client.pdfium/builders/windows_xfa_32/builds/619/steps/compile%20with%20ninja/logs/stdio

Original issue's description:
> Compile fuzzer sources in standalone builds.
>
> - Add a template for fuzzers to remove redundancy.
> - Sort fuzzers in alphabetical order.
>
> Committed: https://pdfium.googlesource.com/pdfium/+/470b5fa8f8dbfd2aa702d9d8cfdc03a7b486b374

TBR=dsinclair@chromium.org,thestig@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2480323002

2 files changed, 176 insertions, 55 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 48b85c16b8..a54f6e4018 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1759,10 +1759,4 @@ if (pdf_is_standalone) {
       "//samples",
     ]
   }
-  group("fuzzers") {
-    testonly = true
-    deps = [
-      "//testing/libfuzzer",
-    ]
-  }
 }
diff --git a/testing/libfuzzer/BUILD.gn b/testing/libfuzzer/BUILD.gn
index 2b9915d322..e89918b05f 100644
--- a/testing/libfuzzer/BUILD.gn
+++ b/testing/libfuzzer/BUILD.gn
@@ -5,7 +5,7 @@
 import("../../pdfium.gni")
 
 config("libfuzzer_config") {
-  configs = [ "../..:pdfium_core_config" ]
+  configs = [ "//third_party/pdfium:pdfium_core_config" ]
 
   defines = [
     "PNG_PREFIX",
@@ -20,129 +20,256 @@ config("libfuzzer_config") {
   }
 }
 
-group("libfuzzer") {
-}
-
-template("pdfium_fuzzer") {
-  source_set(target_name) {
-    sources = invoker.sources
+if (pdf_enable_xfa) {
+  source_set("pdf_fm2js_fuzzer") {
+    testonly = true
+    sources = [
+      "pdf_fm2js_fuzzer.cc",
+    ]
     deps = [
-      "../..:pdfium",
+      "//third_party/pdfium:pdfium",
     ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
+  }
+  source_set("pdf_xml_fuzzer") {
     testonly = true
+    sources = [
+      "pdf_xml_fuzzer.cc",
+    ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [
       "//build/config/compiler:no_chromium_code",
       ":libfuzzer_config",
     ]
   }
-}
-
-if (pdf_enable_xfa) {
-  pdfium_fuzzer("pdf_cfx_saxreader_fuzzer") {
+  source_set("pdf_cfx_saxreader_fuzzer") {
+    testonly = true
     sources = [
       "pdf_cfx_saxreader_fuzzer.cc",
     ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
   }
-
-  pdfium_fuzzer("pdf_codec_bmp_fuzzer") {
+  source_set("pdf_codec_png_fuzzer") {
+    testonly = true
     sources = [
-      "pdf_codec_bmp_fuzzer.cc",
+      "pdf_codec_png_fuzzer.cc",
       "xfa_codec_fuzzer.h",
     ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
   }
-
-  pdfium_fuzzer("pdf_codec_gif_fuzzer") {
+  source_set("pdf_codec_jpeg_fuzzer") {
+    testonly = true
     sources = [
-      "pdf_codec_gif_fuzzer.cc",
+      "pdf_codec_jpeg_fuzzer.cc",
       "xfa_codec_fuzzer.h",
     ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
   }
-
-  pdfium_fuzzer("pdf_codec_jpeg_fuzzer") {
+  source_set("pdf_codec_gif_fuzzer") {
+    testonly = true
     sources = [
-      "pdf_codec_jpeg_fuzzer.cc",
+      "pdf_codec_gif_fuzzer.cc",
       "xfa_codec_fuzzer.h",
     ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
   }
-
-  pdfium_fuzzer("pdf_codec_png_fuzzer") {
+  source_set("pdf_codec_bmp_fuzzer") {
+    testonly = true
     sources = [
-      "pdf_codec_png_fuzzer.cc",
+      "pdf_codec_bmp_fuzzer.cc",
       "xfa_codec_fuzzer.h",
     ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
   }
-
-  pdfium_fuzzer("pdf_codec_tiff_fuzzer") {
+  source_set("pdf_codec_tiff_fuzzer") {
+    testonly = true
     sources = [
       "pdf_codec_tiff_fuzzer.cc",
       "xfa_codec_fuzzer.h",
     ]
+    deps = [
+      "//third_party/pdfium:pdfium",
+    ]
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
+    ]
   }
-
-  pdfium_fuzzer("pdf_css_fuzzer") {
+  source_set("pdf_css_fuzzer") {
+    testonly = true
     sources = [
       "pdf_css_fuzzer.cc",
     ]
-  }
-
-  pdfium_fuzzer("pdf_fm2js_fuzzer") {
-    sources = [
-      "pdf_fm2js_fuzzer.cc",
+    deps = [
+      "//third_party/pdfium:pdfium",
     ]
-  }
-
-  pdfium_fuzzer("pdf_xml_fuzzer") {
-    sources = [
-      "pdf_xml_fuzzer.cc",
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [
+      "//build/config/compiler:no_chromium_code",
+      ":libfuzzer_config",
     ]
   }
 }
 
-pdfium_fuzzer("pdf_cmap_fuzzer") {
+source_set("pdf_cmap_fuzzer") {
+  testonly = true
   sources = [
     "pdf_cmap_fuzzer.cc",
   ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
+  ]
 }
 
-pdfium_fuzzer("pdf_codec_fax_fuzzer") {
+source_set("pdf_codec_fax_fuzzer") {
+  testonly = true
   sources = [
     "pdf_codec_fax_fuzzer.cc",
   ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
+  ]
 }
 
-pdfium_fuzzer("pdf_codec_icc_fuzzer") {
+source_set("pdf_codec_icc_fuzzer") {
+  testonly = true
   sources = [
     "pdf_codec_icc_fuzzer.cc",
   ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
+  ]
 }
 
-pdfium_fuzzer("pdf_codec_jbig2_fuzzer") {
+source_set("pdf_codec_jbig2_fuzzer") {
+  testonly = true
   sources = [
     "pdf_codec_jbig2_fuzzer.cc",
   ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
+  ]
 }
 
-pdfium_fuzzer("pdf_hint_table_fuzzer") {
+source_set("pdf_jpx_fuzzer") {
+  testonly = true
   sources = [
-    "pdf_hint_table_fuzzer.cc",
+    "pdf_jpx_fuzzer.cc",
+  ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
   ]
 }
 
-pdfium_fuzzer("pdf_jpx_fuzzer") {
+source_set("pdf_psengine_fuzzer") {
+  testonly = true
   sources = [
-    "pdf_jpx_fuzzer.cc",
+    "pdf_psengine_fuzzer.cc",
+  ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
   ]
 }
 
-pdfium_fuzzer("pdf_psengine_fuzzer") {
+source_set("pdf_hint_table_fuzzer") {
+  testonly = true
   sources = [
-    "pdf_psengine_fuzzer.cc",
+    "pdf_hint_table_fuzzer.cc",
+  ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
   ]
 }
 
-pdfium_fuzzer("pdf_streamparser_fuzzer") {
+source_set("pdf_streamparser_fuzzer") {
+  testonly = true
   sources = [
     "pdf_streamparser_fuzzer.cc",
   ]
+  deps = [
+    "//third_party/pdfium:pdfium",
+  ]
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [
+    "//build/config/compiler:no_chromium_code",
+    ":libfuzzer_config",
+  ]
 }