DevTools: android shouldn't depend on devtools frontend

content/browser/BUILD.gn

 # 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/features.gni")
 import("//build/config/ui.gni")
 import("//gpu/vulkan/features.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
@@ skipping 448 matching lines @@
     # because the latter is not built on Android, whereas these files are
     # needed on all platforms.
     "compositor/surface_utils.cc",
     "compositor/surface_utils.h",
     "devtools/browser_devtools_agent_host.cc",
     "devtools/browser_devtools_agent_host.h",
     "devtools/devtools_agent_host_impl.cc",
     "devtools/devtools_agent_host_impl.h",
     "devtools/devtools_frame_trace_recorder.cc",
     "devtools/devtools_frame_trace_recorder.h",
-    "devtools/devtools_frontend_host_impl.cc",
-    "devtools/devtools_frontend_host_impl.h",
     "devtools/devtools_http_handler.cc",
     "devtools/devtools_http_handler.h",
     "devtools/devtools_io_context.cc",
     "devtools/devtools_io_context.h",
     "devtools/devtools_manager.cc",
     "devtools/devtools_manager.h",
     "devtools/devtools_session.cc",
     "devtools/devtools_session.h",
     "devtools/forwarding_agent_host.cc",
     "devtools/forwarding_agent_host.h",
@@ skipping 1375 matching lines @@
       "//ui/android",
     ]
     defines += [
       "APPCACHE_USE_SIMPLE_CACHE",
       "ENABLE_SCREEN_CAPTURE=1",
     ]
     libs += [ "jnigraphics" ]
   } else {
     # Not Android.
     sources += [
+      # Devtools frontend not included in Android
+      "devtools/devtools_frontend_host_impl.cc",
+      "devtools/devtools_frontend_host_impl.h",
+
       # Most speech code is non-Android.
       "speech/audio_buffer.cc",
       "speech/audio_buffer.h",
       "speech/audio_encoder.cc",
       "speech/audio_encoder.h",
       "speech/chunked_byte_buffer.cc",
       "speech/chunked_byte_buffer.h",
       "speech/endpointer/endpointer.cc",
       "speech/endpointer/endpointer.h",
       "speech/endpointer/energy_endpointer.cc",
@@ skipping 179 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }