Fix a large number of missing dependencies in the blink gn build

third_party/WebKit/Source/core/core.gni

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/split_static_library.gni")
 import("//third_party/WebKit/Source/config.gni")
 
 blink_core_output_dir = "$root_gen_dir/blink/core"
 
@@ skipping 82 matching lines @@
       split_count = invoker.split_count
     }
 
     deps = [
       "//third_party/WebKit/Source/core:prerequisites",
     ]
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
 
+    public_deps = [
+      "//third_party/WebKit/Source/core:all_generators",
+    ]
+    if (defined(invoker.public_deps)) {
+      public_deps += invoker.public_deps
+    }
+
     # Take everything else not handled above from the invoker.
     forward_variables_from(invoker,
                            "*",
                            [
                              "deps",
+                             "public_deps",
                              "split_count",
                            ])
   }
 }
 set_defaults("blink_core_sources") {
   # This sets the default list of configs when the blink_core_sources target
   # is defined. The default_compiler_configs comes from BUILDCONFIG.gn and
   # is the list normally applied to static libraries and source sets.
   configs = default_compiler_configs - core_config_remove + core_config_add
 }