Add compile time checks against longs being used in IPC structs on 32 bit Android.

components/web_cache/renderer/web_cache_render_process_observer.h

Index: components/web_cache/renderer/web_cache_render_process_observer.h
diff --git a/components/web_cache/renderer/web_cache_render_process_observer.h b/components/web_cache/renderer/web_cache_render_process_observer.h
index 6ae69169c3792044c9a28e650647e27e488570e9..b683fa73bcced11e10765fbf5949ffbef248f4ea 100644
--- a/components/web_cache/renderer/web_cache_render_process_observer.h
+++ b/components/web_cache/renderer/web_cache_render_process_observer.h
@@ -6,6 +6,7 @@
 #define COMPONENTS_WEB_CACHE_RENDERER_WEB_CACHE_RENDER_PROCESS_OBSERVER_H_
 
 #include <stddef.h>
+#include <stdint.h>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
@@ -30,9 +31,9 @@ class WebCacheRenderProcessObserver : public content::RenderProcessObserver {
   void OnRenderProcessShutdown() override;
 
   // Message handlers.
-  void OnSetCacheCapacities(size_t min_dead_capacity,
-                            size_t max_dead_capacity,
-                            size_t capacity);
+  void OnSetCacheCapacities(uint32_t min_dead_capacity,
+                            uint32_t max_dead_capacity,
+                            uint32_t capacity);
   // If |on_navigation| is true, the clearing is delayed until the next
   // navigation event.
   void OnClearCache(bool on_navigation);