MD Settings: get the avatar icon the same way the user switcher does

chrome/browser/ui/webui/settings/profile_info_handler_unittest.cc

Index: chrome/browser/ui/webui/settings/profile_info_handler_unittest.cc
diff --git a/chrome/browser/ui/webui/settings/profile_info_handler_unittest.cc b/chrome/browser/ui/webui/settings/profile_info_handler_unittest.cc
index f94e03c78ec7b227c93b360e2e3fb52012b26ecb..a2ba1fcda41c02607faf512afee08b62fb84094e 100644
--- a/chrome/browser/ui/webui/settings/profile_info_handler_unittest.cc
+++ b/chrome/browser/ui/webui/settings/profile_info_handler_unittest.cc
@@ -14,7 +14,9 @@
 #include "content/public/browser/web_ui_data_source.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_web_ui.h"
+#include "net/base/data_url.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/users/fake_chrome_user_manager.h"
@@ -78,7 +80,8 @@ class ProfileInfoHandlerTest : public testing::Test {
     EXPECT_FALSE(icon_url.empty());
 #else
     EXPECT_EQ("Profile 1", name);
-    EXPECT_EQ("chrome://theme/IDR_PROFILE_AVATAR_0", icon_url);
+    std::string mime, charset, data;  // All unused.
+    EXPECT_TRUE(net::DataURL::Parse(GURL(icon_url), &mime, &charset, &data));

[dschuyler, 2017/04/11 23:36:48]

How about something like the tests done here that check the mimetype and the png
data (i.e. doing something similar here)
https://cs.chromium.org/chromium/src/content/browser/accessibility/accessibil...

[Dan Beam, 2017/04/11 23:50:32]

Done.

 #endif
   }