[win] Create ModuleDatabase and ModuleEventSinkImpl.

chrome/common/conflicts/module_watcher_win.h

Index: chrome/common/conflicts/module_watcher_win.h
diff --git a/chrome/common/conflicts/module_watcher_win.h b/chrome/common/conflicts/module_watcher_win.h
index b2255d024e18c266a704388fa57165f3d79bacf6..0d87bc806ffb2eb63284e9bc6b6d3fbf59dfb574 100644
--- a/chrome/common/conflicts/module_watcher_win.h
+++ b/chrome/common/conflicts/module_watcher_win.h
@@ -8,7 +8,8 @@
 #include <memory>
 
 #include "base/callback.h"
-#include "chrome/common/conflicts/module_event_win.mojom.h"
+#include "base/files/file_path.h"
+#include "chrome/common/conflicts/module_event_sink_win.mojom.h"
 
 class ModuleWatcherTest;
 
@@ -22,14 +23,33 @@ union LDR_DLL_NOTIFICATION_DATA;
 // created.
 class ModuleWatcher {
  public:
+  // Houses information about a module load/unload event, and some module
+  // metadata.
+  struct ModuleEvent {
+    ModuleEvent() = default;
+    ModuleEvent(const ModuleEvent& other) = default;
+    ModuleEvent(mojom::ModuleEventType event_type,
+                const base::FilePath& module_path,
+                void* module_load_address,
+                size_t module_size);
+
+    // The type of module event.
+    mojom::ModuleEventType event_type;
+    // The full path to the module on disk.
+    base::FilePath module_path;
+    // The load address of the module.
+    void* module_load_address;
+    // The size of the module in memory.
+    size_t module_size;
+  };
+
   // The type of callback that will be invoked for each module event. This is
   // invoked by the loader and potentially on any thread. The loader lock is not
   // held but the execution of this callback blocks the module from being bound.
   // Keep the amount of work performed here to an absolute minimum. Note that
   // it is possible for this callback to be invoked after the destruction of the
   // watcher, but very unlikely.
-  using OnModuleEventCallback =
-      base::Callback<void(const mojom::ModuleEvent& event)>;
+  using OnModuleEventCallback = base::Callback<void(const ModuleEvent& event)>;
 
   // Creates and starts a watcher. This enumerates all loaded modules
   // synchronously on the current thread during construction, and provides