mojo: Sketch a profile application.

content/public/browser/browser_context.h

Index: content/public/browser/browser_context.h
diff --git a/content/public/browser/browser_context.h b/content/public/browser/browser_context.h
index b524b176daf208f32a3fe169c05d18ba38258552..70335fe7c6a1ab8c3e036724f703fbf5c7c1205f 100644
--- a/content/public/browser/browser_context.h
+++ b/content/public/browser/browser_context.h
@@ -128,6 +128,16 @@ class CONTENT_EXPORT BrowserContext : public base::SupportsUserData {
   static void SetDownloadManagerForTesting(BrowserContext* browser_context,
                                            DownloadManager* download_manager);
 
+  // Makes mojo aware of this BrowserContext, and assigns a user ID number to
+  // it. Should be called for each BrowserContext created.
+  static void Initialize(BrowserContext* browser_context,

[Ben Goodger (Google), 2016/03/01 21:56:06]

is there a reason why these methods tend to be static rather than on this
particular browsercontext?

[jam, 2016/03/02 17:50:37]

that's the (admittedly awkward) pattern used here. browsercontext methods
implemented by the embedder are virtual methods. methods that interact with it
and are implemented in content are static.

this should be split into two interfaces.. but probably a lot of this will go
away once the mojo refactorings are gone

+                         const base::FilePath& path);
+
+  // Returns a randomized user ID number associated with this
+  // BrowserContext. This ID is not persistent across runs.
+  static uint32_t GetMojoUserIdFor(BrowserContext* browser_context);
+
+  BrowserContext();
   ~BrowserContext() override;
 
   // Creates a delegate to initialize a HostZoomMap and persist its information.
@@ -198,6 +208,11 @@ class CONTENT_EXPORT BrowserContext : public base::SupportsUserData {
   // Returns the BackgroundSyncController associated with that context if any,
   // nullptr otherwise.
   virtual BackgroundSyncController* GetBackgroundSyncController() = 0;
+
+ private:
+  bool initialize_called_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserContext);
 };
 
 }  // namespace content