Enable users of NotificationUIManager to specify binary images.

ui/message_center/cocoa/notification_controller_unittest.mm

Index: ui/message_center/cocoa/notification_controller_unittest.mm
diff --git a/ui/message_center/cocoa/notification_controller_unittest.mm b/ui/message_center/cocoa/notification_controller_unittest.mm
index 71cd328d8bb38ec603558c95ccf4e137f6fe74da..49630f67efe5e3953118a62fd857805e74298a4a 100644
--- a/ui/message_center/cocoa/notification_controller_unittest.mm
+++ b/ui/message_center/cocoa/notification_controller_unittest.mm
@@ -99,6 +99,7 @@ TEST_F(NotificationControllerTest, BasicLayout) {
           "",
           ASCIIToUTF16("Added to circles"),
           ASCIIToUTF16("Jonathan and 5 others"),
+          gfx::Image(),
           string16(),
           std::string(),
           NULL,
@@ -128,6 +129,7 @@ TEST_F(NotificationControllerTest, OverflowText) {
           ASCIIToUTF16("And even the message is long. This sure is a wordy "
                        "notification. Are you really going to read this "
                        "entire thing?"),
+          gfx::Image(),
           string16(),
           std::string(),
           NULL,
@@ -148,6 +150,7 @@ TEST_F(NotificationControllerTest, Close) {
           "an_id",
           string16(),
           string16(),
+          gfx::Image(),
           string16(),
           std::string(),
           NULL,
@@ -174,6 +177,7 @@ TEST_F(NotificationControllerTest, Update) {
           ASCIIToUTF16("A simple title"),
           ASCIIToUTF16("This message isn't too long and should fit in the"
                        "default bounds."),
+          gfx::Image(),
           string16(),
           std::string(),
           NULL,
@@ -207,6 +211,7 @@ TEST_F(NotificationControllerTest, Buttons) {
           "an_id",
           string16(),
           string16(),
+          gfx::Image(),
           string16(),
           std::string(),
           &buttons,
@@ -231,6 +236,7 @@ TEST_F(NotificationControllerTest, Image) {
           "an_id",
           string16(),
           string16(),
+          gfx::Image(),
           string16(),
           std::string(),
           NULL,