tools/gn: Remove includes of basictypes.h.

tools/gn/docs/cookbook.md

 # GYP->GN Conversion Cookbook
 
 [TOC]
 
 ## Targets
 
 | *GYP*                                            | *GN*                                               |
 |:-------------------------------------------------|:---------------------------------------------------|
 | `'type': 'static_library', 'name': 'foo',`       | `static_library("foo") {` or `source_set("foo") {` |
 | `'type': 'shared_library', 'name': 'foo',`       | `shared_library("foo") {`                          |
@@ skipping 299 matching lines @@
     libraries is linked. In GN, there is a meta-target
     `//crypto:platform` that will "do the right thing" according to the
     current build platform and flags. Generally its safe to replace any
     conditional reference to a SSL library with this one.
 
 ## Visibility and header file issues
 
 GN is much more strict about header file checking. You may encounter
 errors that your target doesn't depend on the target containing a
 certain header file. The most common example is including
-`base/basictypes.h` without having `//base` in your project's dependency
+`base/macros.h` without having `//base` in your project's dependency
 list. The solution is to just add the missing dependency.
 
 The dependency tree must be a DAG. Some components might share headers
 between a number of internal targets that makes adding the "proper"
 dependencies impossible. In this case, you can separate out a
 `source_set` type target containing just the header(s) in question, and
 make the targets that use that header depend on that source set to break
 the cycle.
 
 ##  Other stuff
@@ skipping 311 matching lines @@
 
 ```
 import("//mojo/public/tools/bindings/mojom.gni")
 
 mojom("mojo_bindings") {
   sources = [
     "foo.mojom",
   ]
 }
 ```