Fix android build

src/base/BUILD.gn

@@ -1459,7 +1459,7 @@ mixed_component("base") {
   # building inside the cros_sdk environment - use host_toolchain as a
   # more robust check for this.
   if (!use_sysroot &&
-      (is_android || ((is_linux || is_chromeos) && !is_chromecast)) &&
+      ((is_linux || is_chromeos) && !is_chromecast) &&
       host_toolchain != "//build/toolchain/cros:host") {
     libs += [ "atomic" ]
   }

src/buildtools/third_party/libc++abi/BUILD.gn

@@ -109,4 +109,15 @@ source_set("libc++abi") {
       "//build/config/compiler:no_rtti",
     ]
   }
+  if (is_android) {
+    sources += [
+      "trunk/src/private_typeinfo.cpp",
+    ]
+    configs -= [
+      "//build/config/compiler:no_rtti",
+    ]
+    configs += [
+      "//build/config/compiler:rtti",
+    ]
+  }
 }