Provide sync integration tests with a way to set a favicon for a bookmark.

chrome/test/live_sync/live_bookmarks_sync_test.h

Index: chrome/test/live_sync/live_bookmarks_sync_test.h
diff --git a/chrome/test/live_sync/live_bookmarks_sync_test.h b/chrome/test/live_sync/live_bookmarks_sync_test.h
index e34bf4df4cec3bafd42be301359f1f0e8bd153f7..b3ac273ebfb2a05e5c1b9b789983ea7517a4aaab 100644
--- a/chrome/test/live_sync/live_bookmarks_sync_test.h
+++ b/chrome/test/live_sync/live_bookmarks_sync_test.h
@@ -14,8 +14,10 @@
 #include "chrome/test/live_sync/bookmark_model_verifier.h"
 #include "chrome/test/live_sync/live_sync_test.h"
 #include "chrome/test/ui_test_utils.h"
+#include "gfx/codec/png_codec.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 
 class LiveBookmarksSyncTest : public LiveSyncTest {
  public:
@@ -140,6 +142,20 @@ class LiveBookmarksSyncTest : public LiveSyncTest {
         GetBookmarkModel(profile), node, WideToUTF16(new_title));
   }
 
+  // Sets the favicon of the node |node| (of type BookmarkNode::URL) in the
+  // bookmark model of profile |profile| using the data in |icon_bytes_vector|.
+  void SetFavicon(int profile,
+                  const BookmarkNode* node,
+                  const std::vector<unsigned char>& icon_bytes_vector) {
+    ASSERT_EQ(GetBookmarkModel(profile)->GetNodeByID(node->id()), node)
+        << "Node " << node->GetTitle() << " does not belong to "
+        << "Profile " << profile;
+    ASSERT_EQ(BookmarkNode::URL, node->type())
+        << "Node " << node->GetTitle() << " must be a url.";
+    verifier_helper_->SetFavicon(
+        GetBookmarkModel(profile), node, icon_bytes_vector);
+  }
+
   // Changes the url of the node |node| in the bookmark model of profile
   // |profile| to |new_url|. Returns a pointer to the node with the changed url.
   const BookmarkNode* SetURL(int profile,
@@ -278,6 +294,25 @@ class LiveBookmarksSyncTest : public LiveSyncTest {
         GetBookmarkModel(profile), BookmarkNode::FOLDER, WideToUTF16(title));
   }
 
+  // Creates a unique favicon using |seed|.
+  static std::vector<unsigned char> CreateFavicon(int seed) {
+    const int w = 16;
+    const int h = 16;
+    SkBitmap bmp;
+    bmp.setConfig(SkBitmap::kARGB_8888_Config, w, h);
+    bmp.allocPixels();
+    uint32_t* src_data = bmp.getAddr32(0, 0);
+    for (int i = 0; i < w * h; ++i) {
+      src_data[i] = SkPreMultiplyARGB((seed + i) % 255,
+                                      (seed + i) % 250,
+                                      (seed + i) % 245,
+                                      (seed + i) % 240);
+    }
+    std::vector<unsigned char> favicon;
+    gfx::PNGCodec::EncodeBGRASkBitmap(bmp, false, &favicon);
+    return favicon;
+  }
+
  private:
   // Helper object that has the functionality to verify changes made to the
   // bookmarks of individual profiles.