Infobar UI cleanup on Mac. Adds the yellow background gradient and...

chrome/browser/cocoa/infobar_gradient_view_unittest.mm

Index: chrome/browser/cocoa/infobar_gradient_view_unittest.mm
===================================================================
--- chrome/browser/cocoa/infobar_gradient_view_unittest.mm	(revision 21067)
+++ chrome/browser/cocoa/infobar_gradient_view_unittest.mm	(working copy)
@@ -5,37 +5,41 @@
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_nsobject.h"
-#import "chrome/browser/cocoa/background_gradient_view.h"
+#import "chrome/browser/cocoa/infobar_gradient_view.h"
 #import "chrome/browser/cocoa/cocoa_test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
-class BackgroundGradientViewTest : public testing::Test {
+class InfoBarGradientViewTest : public testing::Test {
  public:
-  BackgroundGradientViewTest() {
+  InfoBarGradientViewTest() {
     NSRect frame = NSMakeRect(0, 0, 100, 30);
-    view_.reset([[BackgroundGradientView alloc] initWithFrame:frame]);
+    view_.reset([[InfoBarGradientView alloc] initWithFrame:frame]);
     [cocoa_helper_.contentView() addSubview:view_.get()];
   }
 
   CocoaTestHelper cocoa_helper_;  // Inits Cocoa, creates window, etc...
-  scoped_nsobject<BackgroundGradientView> view_;
+  scoped_nsobject<InfoBarGradientView> view_;
 };
 
 // Test adding/removing from the view hierarchy, mostly to ensure nothing
 // leaks or crashes.
-TEST_F(BackgroundGradientViewTest, AddRemove) {
+TEST_F(InfoBarGradientViewTest, AddRemove) {
   EXPECT_EQ(cocoa_helper_.contentView(), [view_ superview]);
   [view_.get() removeFromSuperview];
   EXPECT_FALSE([view_ superview]);
 }
 
 // Test drawing, mostly to ensure nothing leaks or crashes.
-TEST_F(BackgroundGradientViewTest, Display) {
+TEST_F(InfoBarGradientViewTest, Display) {
   [view_ display];
-  [view_ setShowsDivider:YES];
-  [view_ display];
 }
 
+// Assert that the view is non-opaque, because otherwise we will end
+// up with findbar painting issues.
+TEST_F(InfoBarGradientViewTest, AssertViewNonOpaque) {
+  EXPECT_FALSE([view_ isOpaque]);
+}
+
 }  // namespace