[Mac][Material Design] Fix SelectedKeywordDecoration tests for MD.

chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration_unittest.mm

Index: chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration_unittest.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration_unittest.mm b/chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration_unittest.mm
index ddb5682991aea29e3b0cf479e1d176bb139ebaec..4dee6de9f954b9db6bede297a0021dd03d202513 100644
--- a/chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration_unittest.mm
+++ b/chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration_unittest.mm
@@ -9,6 +9,10 @@
 #import "chrome/browser/ui/cocoa/location_bar/selected_keyword_decoration.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #import "testing/gtest_mac.h"
+#include "ui/base/material_design/material_design_controller.h"
+#include "ui/gfx/image/image_skia_util_mac.h"
+#include "ui/gfx/paint_vector_icon.h"
+#include "ui/gfx/vector_icons_public.h"
 
 namespace {
 
@@ -23,6 +27,16 @@ const CGFloat kNarrowWidth(5.0);
 class SelectedKeywordDecorationTest : public CocoaTest {
  public:
   SelectedKeywordDecorationTest() {
+    // With Material Design vector images the image isn't set at creation time
+    // but later by the LocationBar. The unit tests fail with a nil image, so
+    // initialize it now.
+    if (ui::MaterialDesignController::IsModeMaterial()) {
+      const int kDefaultIconSize = 16;
+      decoration_.SetImage(NSImageFromImageSkia(
+            gfx::CreateVectorIcon(gfx::VectorIconId::OMNIBOX_SEARCH,
+                                  kDefaultIconSize,
+                                  SK_ColorBLACK)));
+    }
   }
 
   SelectedKeywordDecoration decoration_;