Fix missing dependencies for //components/crash.

components/crash/content/app/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.
 
 if (is_android) {
   import("//build/config/android/config.gni")
 }
 
 source_set("lib") {
   sources = [
     "crash_keys_win.cc",
     "crash_keys_win.h",
     "crash_reporter_client.cc",
     "crash_reporter_client.h",
   ]
 
   include_dirs = [ "../../../../breakpad/src" ]
+
+  deps = [
+    "//base",
+  ]
 }
 
-# Note: if you depend on this target, you need to either link in
-# content.gyp:content_common, or add content/public/common/content_switches.cc
-# to your sources.
-#
 # GYP version: components/crash.gypi:crash_component
 source_set("app") {
   sources = [
     "crashpad_mac.h",
     "crashpad_mac.mm",
   ]
 
   defines = [ "CRASH_IMPLEMENTATION" ]
 
   deps = [
@@ skipping 22 matching lines @@
 # crash_component. crash_component_breakpad_mac_to_be_deleted will be
 # deleted.
 #
 # While this situation exists:
 #
 # Do not depend on this target directly! Depend on
 # crash_component_breakpad_mac_to_be_deleted for old Breakpad behavior on
 # all platforms, or preferably, depend on crash_component to get Breakpad
 # everywhere except for Mac, where you will get Crashpad.
 source_set("app_non_mac") {
-  visibility = [ ":*" ]
+  visibility = [
+    ":*",
+    "//components/crash/content/browser",

[Dirk Pranke, 2015/10/27 21:33:58]

this is needed to make `gn check` happy, since crash_handler_host_linux.cc is
including breakpad_linux_impl.h.

I figured that that would be fixed as part of cleaning this up, so this change
would be ok. Let me know if you prefer a different approach.

+  ]
 
   sources = [
     "breakpad_linux_impl.h",
     "breakpad_win.cc",
     "breakpad_win.h",
     "hard_error_handler_win.cc",
     "hard_error_handler_win.h",
   ]
 
   if (is_android) {
     libs = [ "log" ]
   }
 
   if (is_android || is_linux) {
     # Want these files on both Linux and Android.
     set_sources_assignment_filter([])
     sources += [
       "breakpad_linux.cc",
       "breakpad_linux.h",
     ]
   }
 
   defines = [ "CRASH_IMPLEMENTATION" ]
 
   deps = [
     ":lib",
     "//base",
     "//base:base_static",
+    "//content/public/common",
   ]
 
   if (is_android) {
     defines += [ "CHROME_BUILD_ID=" + android_chrome_build_id ]
   }
 
   if (is_win) {
     deps += [
       "//sandbox",
       "//breakpad:breakpad_handler",
@@ skipping 25 matching lines @@
 
     defines = [ "CRASH_IMPLEMENTATION" ]
 
     deps += [
       "//base",
       "//base:base_static",
       "//breakpad",
     ]
   }
 }