[Mac] Website settings: Implement custom tab appearance.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10827029

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151051 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/theme/theme_resources.grd

@@ -827,6 +827,10 @@
         <structure type="chrome_scaled_image" name="IDR_VOLUME_BUBBLE_UP_ICON" file="volume_up_icon.png" />
       </if>
       <structure type="chrome_scaled_image" name="IDR_WARNING" file="alert_small.png" />
+      <structure type="chrome_scaled_image" name="IDR_WEBSITE_SETTINGS_TAB_BACKGROUND" file="website_settings_tab_background.png" />
+      <structure type="chrome_scaled_image" name="IDR_WEBSITE_SETTINGS_TAB_CENTER" file="website_settings_tab_center.png" />
+      <structure type="chrome_scaled_image" name="IDR_WEBSITE_SETTINGS_TAB_LEFT" file="website_settings_tab_left.png" />
+      <structure type="chrome_scaled_image" name="IDR_WEBSITE_SETTINGS_TAB_RIGHT" file="website_settings_tab_right.png" />
       <if expr="not pp_ifdef('_google_chrome')">
         <structure type="chrome_scaled_image" name="IDR_WEBSTORE_ICON" file="chromium/webstore_icon.png" />
         <structure type="chrome_scaled_image" name="IDR_WEBSTORE_ICON_16" file="chromium/webstore_icon_16.png" />

chrome/browser/ui/cocoa/website_settings_bubble_controller.h

@@ -17,6 +17,7 @@ class WebsiteSettingsUIBridge;
 @interface WebsiteSettingsBubbleController : BaseBubbleController {
  @private
   scoped_nsobject<NSView> contentView_;
+  scoped_nsobject<NSSegmentedControl> segmentedControl_;
   scoped_nsobject<NSTabView> tabView_;
 
   // Displays the web site identity.

chrome/browser/ui/cocoa/website_settings_bubble_controller_unittest.mm

@@ -92,8 +92,9 @@ class WebsiteSettingsBubbleControllerTest : public CocoaTest {
     EXPECT_EQ(1U, [window_subviews count]);
     NSArray* subviews = [[window_subviews lastObject] subviews];
 
-    // Expect 3 views: the identity, identity status, and the tab view.
-    EXPECT_EQ(3U, [subviews count]);
+    // Expect 4 views: the identity, identity status, the segmented control
+    // (which implements the tab strip), and the tab view.
+    EXPECT_EQ(4U, [subviews count]);
 
     bool desired_result = match_type == TEXT_EQUAL;