Splits components/sessions into separate core and content targets.

components/sessions/BUILD.gn

Index: components/sessions/BUILD.gn
diff --git a/components/sessions/BUILD.gn b/components/sessions/BUILD.gn
index f2ada0545aee1890d319f722324ae5c0f51b0e5d..12a51112e0a5cc03aad09f44e6e6809ab736a0d2 100644
--- a/components/sessions/BUILD.gn
+++ b/components/sessions/BUILD.gn
@@ -2,41 +2,56 @@
 # 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("//third_party/protobuf/proto_library.gni")
+import("//tools/grit/grit_rule.gni")
+
 if (is_android) {
   import("//build/config/android/config.gni")
 }
 
-component("sessions") {
-  sources = [
-    # TODO(rohitrao): Split this target into three separate core, content,
-    # and web targets.
-    "content/content_serialized_navigation_builder.cc",
-    "content/content_serialized_navigation_builder.h",
-    "content/content_serialized_navigation_driver.cc",
-    "content/content_serialized_navigation_driver.h",
-    "core/serialized_navigation_driver.h",
-    "serialized_navigation_entry.cc",
-    "serialized_navigation_entry.h",
-    "session_id.cc",
-    "session_id.h",
-  ]
+if (is_component_build) {
+  component("sessions") {
+    deps = [
+      "//components/sessions/core",
+    ]
 
-  defines = [ "SESSIONS_IMPLEMENTATION" ]
+    if (!is_ios) {
+      deps += [ "//components/sessions/content" ]
+    }
+  }
+  group("sessions_core") {

[blundell, 2014/10/24 07:23:14]

What is this?

[rohitrao (ping after 24h), 2014/10/24 12:18:29]

I'm not really sure, I copied it from components/policy.  I believe it's the GN
equivalent of a "none" target.

+    deps = [ ":sessions" ]
+  }
 
-  deps = [
-    "//base",
-    "//base/third_party/dynamic_annotations",
-    "//content/public/browser",
-    "//skia",
-    "//ui/base",
-    "//url",
-  ]
+  if (!is_ios) {
+    group("sessions_content") {

[blundell, 2014/10/24 07:23:13]

and this?

+      deps = [ ":sessions" ]
+    }
+  }
+} else {  # Compile to separate libraries.
+  group("sessions") {
+    deps = [
+      ":sessions_core",
+      ":sessions_content",
+    ]
 
-  if (!is_android || !is_android_webview_build) {
-    deps += [ "//sync" ]
+    if (!is_ios) {
+      deps += [ ":sessions_content" ]
+    }
+  }
+  component("sessions_core") {
+    deps = [ "//components/sessions/core" ]
+  }
+
+  if (!is_ios) {
+    component("sessions_content") {
+      deps = [ "//components/sessions/content" ]
+    }
   }
 }
 
+
 static_library("test_support") {
   testonly = true
   sources = [