Revert of Improve performance of Character::isCJKIdeographOrSymbol by using trie tree

third_party/WebKit/Source/platform/BUILD.gn

Index: third_party/WebKit/Source/platform/BUILD.gn
diff --git a/third_party/WebKit/Source/platform/BUILD.gn b/third_party/WebKit/Source/platform/BUILD.gn
index f16ea6a4bec96161a79b9f63c42fd446bb761d8d..023849debc931adf116ef505864b0c8936edef58 100644
--- a/third_party/WebKit/Source/platform/BUILD.gn
+++ b/third_party/WebKit/Source/platform/BUILD.gn
@@ -139,38 +139,6 @@
   ]
 }
 
-action("character_data") {
-  script = "../build/scripts/gperf.py"
-  deps = [
-    ":character_data_generator($host_toolchain)",
-  ]
-  output_file = "$blink_platform_output_dir/CharacterData.cpp"
-  outputs = [
-    output_file,
-  ]
-
-  # Find character_data_generator, which is generated in a different directory
-  # when cross-compile.
-  generator = "./" + rebase_path(
-                  get_label_info(":character_data_generator($host_toolchain)",
-                                 "root_out_dir") + "/character_data_generator",
-                  root_build_dir)
-  args = [
-    generator,
-    rebase_path(output_file, root_build_dir),
-  ]
-}
-
-executable("character_data_generator") {
-  sources = [
-    "fonts/CharacterDataGenerator.cpp",
-  ]
-  configs += [ "//third_party/WebKit/Source:config" ]
-  deps = [
-    "//third_party/icu",
-  ]
-}
-
 # This isn't strictly necessary since we can just add the deps to "platform",
 # but it helps to have the targets match the GYP build.
 group("make_platform_generated") {
@@ -178,7 +146,6 @@
   visibility = [ "//third_party/WebKit/Source/*" ]
   public_deps = [
     ":blink_common",
-    ":character_data",
     ":color_data",
     ":font_family_names",
     ":http_names",
@@ -198,11 +165,10 @@
   sources -= blink_platform_sse_files
 
   # Add in the generated files.
-  sources +=
-      get_target_outputs(":font_family_names") +
-      get_target_outputs(":http_names") +
-      get_target_outputs(":runtime_enabled_features") +
-      get_target_outputs(":color_data") + get_target_outputs(":character_data")
+  sources += get_target_outputs(":font_family_names") +
+             get_target_outputs(":http_names") +
+             get_target_outputs(":runtime_enabled_features") +
+             get_target_outputs(":color_data")
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.