[DevTools] Do not build most of chrome/browser/devtools on android.

chrome/browser/devtools/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.
 
 action("devtools_protocol_constants") {
   script = "//content/public/browser/devtools_protocol_constants_generator.py"
 
   blink_protocol = "//third_party/WebKit/Source/devtools/protocol.json"
   source_prereqs = [ blink_protocol ]
   outputs = [
     "$target_gen_dir/devtools_protocol_constants.cc",
     "$target_gen_dir/devtools_protocol_constants.h",
   ]
 
   args = [ "chrome" ]
   args += rebase_path(outputs, root_build_dir)
   args += [ rebase_path(blink_protocol, root_build_dir) ]
 }
 
 # GYP version: chrome/chrome_debugger.gypi:debugger
 static_library("devtools") {
+  # Note: new sources and deps should be generally added in (!is_android) below.
   sources = [
-    "device/adb/adb_client_socket.cc",
-    "device/adb/adb_client_socket.h",
-    "device/adb/adb_device_info_query.cc",
-    "device/adb/adb_device_info_query.h",
-    "device/adb/adb_device_provider.cc",
-    "device/adb/adb_device_provider.h",
-    "device/android_device_manager.cc",
-    "device/android_device_manager.h",
-    "device/android_web_socket.cc",
-    "device/devtools_android_bridge.cc",
-    "device/devtools_android_bridge.h",
-    "device/port_forwarding_controller.cc",
-    "device/port_forwarding_controller.h",
-    "device/self_device_provider.cc",
-    "device/self_device_provider.h",
-    "device/usb/android_rsa.cc",
-    "device/usb/android_rsa.h",
-    "device/usb/android_usb_device.cc",
-    "device/usb/android_usb_device.h",
-    "device/usb/android_usb_socket.cc",
-    "device/usb/android_usb_socket.h",
-    "device/usb/usb_device_provider.cc",
-    "device/usb/usb_device_provider.h",
-    "browser_list_tabcontents_provider.cc",
-    "browser_list_tabcontents_provider.h",
     "chrome_devtools_manager_delegate.cc",
     "chrome_devtools_manager_delegate.h",
-    "devtools_contents_resizing_strategy.cc",
-    "devtools_contents_resizing_strategy.h",
-    "devtools_embedder_message_dispatcher.cc",
-    "devtools_embedder_message_dispatcher.h",
-    "devtools_file_helper.cc",
-    "devtools_file_helper.h",
-    "devtools_file_system_indexer.cc",
-    "devtools_file_system_indexer.h",
     "devtools_network_conditions.cc",
     "devtools_network_conditions.h",
     "devtools_network_controller.cc",
     "devtools_network_controller.h",
     "devtools_network_interceptor.cc",
     "devtools_network_interceptor.h",
     "devtools_network_transaction.cc",
     "devtools_network_transaction.h",
     "devtools_network_transaction_factory.cc",
     "devtools_network_transaction_factory.h",
     "devtools_protocol.cc",
-    "devtools_protocol.h",
-    "devtools_target_impl.cc",
-    "devtools_target_impl.h",
-    "devtools_targets_ui.cc",
-    "devtools_targets_ui.h",
-    "devtools_toggle_action.cc",
-    "devtools_toggle_action.h",
-    "devtools_ui_bindings.cc",
-    "devtools_ui_bindings.h",
-    "devtools_window.cc",
-    "devtools_window.h",
-    "remote_debugging_server.cc",
-    "remote_debugging_server.h",
+    "devtools_protocol.h"
   ]
   sources += get_target_outputs(":devtools_protocol_constants")
 
   # TODO(GYP)
   #     ['debug_devtools==1', {
   #       'defines': [
   #         'DEBUG_DEVTOOLS=1',
   #        ],
   #     }],
   if (is_win) {
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     cflags = [ "/wd4267" ]
   }
   configs += [ "//build/config/compiler:wexit_time_destructors" ]
 
   deps = [
     ":devtools_protocol_constants",
     "//base",
-    "//chrome:extra_resources",
-    "//chrome:resources",
-    "//chrome:strings",
-    "//chrome/app/theme:theme_resources",
-    "//chrome/common/extensions/api",
     "//content/public/browser",
     "//net",
-    "//net:http_server",
-    "//skia",
-    "//third_party/icu",
-    "//third_party/leveldatabase",
   ]
-  if (is_android) {
-    sources -= [
+
+  if (!is_android) {
+    deps += [
+      "//chrome:extra_resources",
+      "//chrome:resources",
+      "//chrome:strings",
+      "//chrome/app/theme:theme_resources",
+      "//chrome/common/extensions/api",
+      "//net:http_server",
+      "//skia",
+      "//third_party/icu",
+      "//third_party/leveldatabase",
+      "//third_party/libusb"
+    ]
+    sources += [
+      "device/adb/adb_client_socket.cc",
+      "device/adb/adb_client_socket.h",
+      "device/adb/adb_device_info_query.cc",
+      "device/adb/adb_device_info_query.h",
+      "device/adb/adb_device_provider.cc",
+      "device/adb/adb_device_provider.h",
+      "device/android_device_manager.cc",
+      "device/android_device_manager.h",
+      "device/android_web_socket.cc",
+      "device/devtools_android_bridge.cc",
+      "device/devtools_android_bridge.h",
+      "device/port_forwarding_controller.cc",
+      "device/port_forwarding_controller.h",
+      "device/self_device_provider.cc",
+      "device/self_device_provider.h",
       "device/usb/android_rsa.cc",
+      "device/usb/android_rsa.h",
+      "device/usb/android_usb_device.cc",
+      "device/usb/android_usb_device.h",
+      "device/usb/android_usb_socket.cc",
+      "device/usb/android_usb_socket.h",
+      "device/usb/usb_device_provider.cc",
+      "device/usb/usb_device_provider.h",
       "browser_list_tabcontents_provider.cc",
+      "browser_list_tabcontents_provider.h",
+      "devtools_contents_resizing_strategy.cc",
+      "devtools_contents_resizing_strategy.h",
+      "devtools_embedder_message_dispatcher.cc",
+      "devtools_embedder_message_dispatcher.h",
+      "devtools_file_helper.cc",
+      "devtools_file_helper.h",
       "devtools_file_system_indexer.cc",
+      "devtools_file_system_indexer.h",
       "devtools_target_impl.cc",
+      "devtools_target_impl.h",
+      "devtools_targets_ui.cc",
+      "devtools_targets_ui.h",
+      "devtools_toggle_action.cc",
+      "devtools_toggle_action.h",
       "devtools_ui_bindings.cc",
+      "devtools_ui_bindings.h",
       "devtools_window.cc",
-      "devtools_window_base.cc",
+      "devtools_window.h",
       "remote_debugging_server.cc",
+      "remote_debugging_server.h"
     ]
-  } else {
-    deps += [ "//third_party/libusb" ]
   }
 }