Convert UtilityProcessHost to bootstrap Mojo Channel using the Shell connection

extensions/browser/extensions_test.cc

Index: extensions/browser/extensions_test.cc
diff --git a/extensions/browser/extensions_test.cc b/extensions/browser/extensions_test.cc
index bb37b3aa5aadaa196fdd3baf213272808daaeafd..4ae1236ac99354b7d34397e81b5b4ef1767ac03e 100644
--- a/extensions/browser/extensions_test.cc
+++ b/extensions/browser/extensions_test.cc
@@ -10,8 +10,29 @@
 #include "content/public/test/test_browser_context.h"
 #include "extensions/browser/test_extensions_browser_client.h"
 #include "extensions/test/test_content_utility_client.h"
+#include "ui/base/resource/resource_bundle.h"
 
 namespace extensions {
+namespace {
+
+class ExtensionsTestContentClient : public content::ContentClient {
+ public:
+  ExtensionsTestContentClient() {}
+  ~ExtensionsTestContentClient() override {}
+
+  // content::ContentClient overrides:
+  base::StringPiece GetDataResource(
+      int resource_id,
+      ui::ScaleFactor scale_factor) const override {
+    return ResourceBundle::GetSharedInstance().GetRawDataResourceForScale(
+        resource_id, scale_factor);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ExtensionsTestContentClient);
+};
+
+}  // namespace
 
 // This class does work in the constructor instead of SetUp() to give subclasses
 // a valid BrowserContext to use while initializing their members. For example:
@@ -22,7 +43,7 @@ namespace extensions {
 //   }
 // };
 ExtensionsTest::ExtensionsTest()
-    : content_client_(new content::ContentClient),
+    : content_client_(new ExtensionsTestContentClient),
       content_utility_client_(new TestContentUtilityClient),
       content_browser_client_(new content::ContentBrowserClient),
       browser_context_(new content::TestBrowserContext),