Migrate HostZoomMap to live in StoragePartition.

content/browser/storage_partition_impl.cc

Index: content/browser/storage_partition_impl.cc
diff --git a/content/browser/storage_partition_impl.cc b/content/browser/storage_partition_impl.cc
index ea344cea890da47dddd69ef693b7a21106416cf8..a09050e07f1c6849fea0da0fc5846b077eb17886 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -9,6 +9,8 @@
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/fileapi/browser_file_system_helper.h"
 #include "content/browser/gpu/shader_disk_cache.h"
+#include "content/browser/host_zoom_level_context.h"
+#include "content/browser/host_zoom_map_impl.h"
 #include "content/common/dom_storage/dom_storage_types.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
@@ -355,7 +357,8 @@ StoragePartitionImpl::StoragePartitionImpl(
     IndexedDBContextImpl* indexed_db_context,
     ServiceWorkerContextWrapper* service_worker_context,
     WebRTCIdentityStore* webrtc_identity_store,
-    quota::SpecialStoragePolicy* special_storage_policy)
+    quota::SpecialStoragePolicy* special_storage_policy,
+    HostZoomLevelContext* host_zoom_level_context)
     : partition_path_(partition_path),
       quota_manager_(quota_manager),
       appcache_service_(appcache_service),
@@ -365,7 +368,8 @@ StoragePartitionImpl::StoragePartitionImpl(
       indexed_db_context_(indexed_db_context),
       service_worker_context_(service_worker_context),
       webrtc_identity_store_(webrtc_identity_store),
-      special_storage_policy_(special_storage_policy) {}
+      special_storage_policy_(special_storage_policy),
+      host_zoom_level_context_(host_zoom_level_context) {}
 
 StoragePartitionImpl::~StoragePartitionImpl() {
   // These message loop checks are just to avoid leaks in unittests.
@@ -456,6 +460,12 @@ StoragePartitionImpl* StoragePartitionImpl::Create(
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy(
       context->GetSpecialStoragePolicy());
 
+  double default_zoom_level = context->GetDefaultZoomLevel();
+  scoped_refptr<HostZoomLevelContext> host_zoom_level_context =
+      new HostZoomLevelContext(context->CreateZoomLevelPrefsDelegate(),
+                               partition_path,
+                               default_zoom_level);
+
   return new StoragePartitionImpl(partition_path,
                                   quota_manager.get(),
                                   appcache_service.get(),
@@ -465,7 +475,8 @@ StoragePartitionImpl* StoragePartitionImpl::Create(
                                   indexed_db_context.get(),
                                   service_worker_context.get(),
                                   webrtc_identity_store.get(),
-                                  special_storage_policy.get());
+                                  special_storage_policy.get(),
+                                  host_zoom_level_context.get());
 }
 
 base::FilePath StoragePartitionImpl::GetPath() {
@@ -509,6 +520,16 @@ ServiceWorkerContextWrapper* StoragePartitionImpl::GetServiceWorkerContext() {
   return service_worker_context_.get();
 }
 
+HostZoomMap* StoragePartitionImpl::GetHostZoomMap() {
+  DCHECK(host_zoom_level_context_);
+  return host_zoom_level_context_->GetHostZoomMap();
+}
+
+PrefService* StoragePartitionImpl::GetZoomLevelPrefs() {
+  DCHECK(host_zoom_level_context_);
+  return host_zoom_level_context_->GetZoomLevelPrefs();
+}
+
 void StoragePartitionImpl::ClearDataImpl(
     uint32 remove_mask,
     uint32 quota_storage_remove_mask,