Break up the chrome/common:common target

chrome/common/BUILD.gn

Index: chrome/common/BUILD.gn
diff --git a/chrome/common/BUILD.gn b/chrome/common/BUILD.gn
index e975e3e0f8f3d243296a4b7c0fab380f9adba013..60f4108a43ae4e58a4b13ad8160c5ce745efcd0f 100644
--- a/chrome/common/BUILD.gn
+++ b/chrome/common/BUILD.gn
@@ -48,6 +48,29 @@ buildflag_header("features") {
   ]
 }
 
+source_set("channel_info") {
+  sources = [
+    "channel_info.cc",
+    "channel_info.h",
+    "channel_info_android.cc",
+    "channel_info_chromeos.cc",
+    "channel_info_mac.mm",
+    "channel_info_win.cc",
+  ]
+
+  if (!is_android && !is_chromeos && !is_mac) {
+    sources += [ "channel_info_posix.cc" ]
+  }
+  public_deps = [
+    "//base",
+    "//components/version_info",
+    "//components/version_info:version_string",
+  ]
+  if (is_win) {
+    public_deps += [ "//chrome/install_static:install_static_util" ]
+  }
+}
+
 # Use a static library here because many test binaries depend on this but don't
 # require many files from it. This makes linking more efficient.
 static_library("common") {
@@ -56,13 +79,6 @@ static_library("common") {
     "attrition_experiments.h",
     "auto_start_linux.cc",
     "auto_start_linux.h",
-    "channel_info.cc",
-    "channel_info.h",
-    "channel_info_android.cc",
-    "channel_info_chromeos.cc",
-    "channel_info_mac.mm",
-    "channel_info_posix.cc",
-    "channel_info_win.cc",
     "child_process_logging.h",
     "child_process_logging_win.cc",
     "chrome_content_client.cc",
@@ -166,6 +182,7 @@ static_library("common") {
   ]
 
   public_deps = [
+    ":channel_info",
     ":features",
     ":mojo_bindings",
     ":page_load_metrics_mojom",
@@ -214,8 +231,6 @@ static_library("common") {
     "//components/translate/core/common",
     "//components/url_formatter",
     "//components/variations",
-    "//components/version_info",
-    "//components/version_info:version_string",
     "//components/visitedlink/common",
     "//content/public/common",
     "//crypto",
@@ -229,7 +244,6 @@ static_library("common") {
     "//media",
     "//mojo/edk/system",
     "//mojo/public/cpp/bindings",
-    "//net",
     "//pdf:features",
     "//ppapi/features",
     "//printing/features",
@@ -379,21 +393,10 @@ static_library("common") {
 
   # Printing.
   if (enable_basic_printing || enable_print_preview) {
-    sources += [
-      "chrome_utility_printing_messages.h",
-      "cloud_print/cloud_print_cdd_conversion.cc",
-      "cloud_print/cloud_print_cdd_conversion.h",
-      "cloud_print/cloud_print_class_mac.h",
-      "cloud_print/cloud_print_class_mac.mm",
-      "cloud_print/cloud_print_constants.cc",
-      "cloud_print/cloud_print_constants.h",
-      "cloud_print/cloud_print_helpers.cc",
-      "cloud_print/cloud_print_helpers.h",
-      "cloud_print/cloud_print_proxy_info.cc",
-      "cloud_print/cloud_print_proxy_info.h",
-    ]
+    sources += [ "chrome_utility_printing_messages.h" ]
 
     public_deps += [
+      "//chrome/common/cloud_print",
       "//components/printing/common",
       "//printing",
     ]
@@ -413,10 +416,7 @@ static_library("common") {
   }
 
   if (is_android) {
-    sources -= [
-      "channel_info_posix.cc",
-      "media_galleries/metadata_types.h",
-    ]
+    sources -= [ "media_galleries/metadata_types.h" ]
     sources += [
       "media/chrome_media_drm_bridge_client.cc",
       "media/chrome_media_drm_bridge_client.h",
@@ -455,13 +455,8 @@ static_library("common") {
     ]
   }
 
-  if (is_chromeos) {
-    sources -= [ "channel_info_posix.cc" ]
-  }
-
   if (is_win) {
     public_deps += [
-      "//chrome/install_static:install_static_util",
       "//components/dom_distiller/core",  # Needed by chrome_content_client.cc.
       "//third_party/wtl",
     ]
@@ -470,7 +465,6 @@ static_library("common") {
   }
 
   if (is_mac) {
-    sources -= [ "channel_info_posix.cc" ]
     public_deps += [
       "//third_party/google_toolbox_for_mac",
       "//third_party/mach_override",