Migrate HostZoomMap to live in StoragePartition.

content/public/test/test_browser_context.h

Index: content/public/test/test_browser_context.h
diff --git a/content/public/test/test_browser_context.h b/content/public/test/test_browser_context.h
index a736cb9d99263312bafbb3ad0fc97d6c61d081c0..13101871a7ba6f77aeada1d3664a0f91146c4537 100644
--- a/content/public/test/test_browser_context.h
+++ b/content/public/test/test_browser_context.h
@@ -15,6 +15,7 @@
 
 namespace content {
 class MockResourceContext;
+class ZoomLevelDelegate;
 
 class TestBrowserContext : public BrowserContext {
  public:
@@ -28,6 +29,8 @@ class TestBrowserContext : public BrowserContext {
   void SetSpecialStoragePolicy(storage::SpecialStoragePolicy* policy);
 
   base::FilePath GetPath() const override;
+  scoped_ptr<ZoomLevelDelegate> CreateZoomLevelDelegate(
+      const base::FilePath& partition_path) override;
   bool IsOffTheRecord() const override;
   DownloadManagerDelegate* GetDownloadManagerDelegate() override;
   net::URLRequestContextGetter* GetRequestContext() override;