Migrate HostZoomMap to live in StoragePartition.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index 7aede511fc9e3fff3b7c812e33c4eab4f72feda3..a86606175137f94f721b92c1d0241e4f67e1e303 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -645,6 +645,7 @@ Profile* TestingProfile::GetOffTheRecordProfile() {
     builder.SetIncognito();
     scoped_ptr<TestingProfile> incognito_test_profile(builder.Build());
     incognito_test_profile->SetOriginalProfile(this);
+    incognito_test_profile->TrackZoomLevelsFromParent(this);
     SetOffTheRecordProfile(incognito_test_profile.PassAs<Profile>());
   }
   return incognito_profile_.get();
@@ -830,6 +831,10 @@ content::PushMessagingService* TestingProfile::GetPushMessagingService() {
   return NULL;
 }
 
+double TestingProfile::GetDefaultZoomLevel() const {
+  return 0.0;
+}
+
 bool TestingProfile::IsSameProfile(Profile *p) {
   return this == p;
 }