Convert instant search messages to Mojo

chrome/common/BUILD.gn

Index: chrome/common/BUILD.gn
diff --git a/chrome/common/BUILD.gn b/chrome/common/BUILD.gn
index 2c5b6d8cb59d2cf1ca0c083c038ef39668fa3a0c..e34b61826bfd9423e3b206b653f1bf0637e1ad23 100644
--- a/chrome/common/BUILD.gn
+++ b/chrome/common/BUILD.gn
@@ -92,6 +92,7 @@ static_library("common") {
     "descriptors_android.h",
     "ini_parser.cc",
     "ini_parser.h",
+    "instant_type_traits.h",
     "logging_chrome.cc",
     "logging_chrome.h",
     "mac/app_shim_launch.h",
@@ -623,13 +624,18 @@ if (is_win) {
 # require many files from it. This makes linking more efficient.
 static_library("test_support") {
   testonly = true
-  visibility = [ "//chrome/test:test_support" ]
+  visibility = [ "//chrome/test:*" ]
 
-  sources = []
+  sources = [
+    "search/mock_searchbox.cc",
+    "search/mock_searchbox.h",
+  ]
 
   deps = [
     ":common",
+    ":instant_mojom",
     "//base",
+    "//testing/gmock",
     "//testing/gtest",
   ]
 
@@ -685,3 +691,14 @@ mojom("mojo_bindings") {
     "//url/mojo:url_mojom_gurl",
   ]
 }
+
+mojom("instant_mojom") {
+  sources = [
+    "instant.mojom",
+  ]
+
+  public_deps = [
+    "//mojo/common:common_custom_types",
+    "//url/mojo:url_mojom_gurl",
+  ]
+}