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

components/web_cache/renderer/web_cache_render_process_observer.cc

Index: components/web_cache/renderer/web_cache_render_process_observer.cc
diff --git a/components/web_cache/renderer/web_cache_render_process_observer.cc b/components/web_cache/renderer/web_cache_render_process_observer.cc
index a273817a2c0d957d798930a0a6ad65ddfa1947f1..a944ba1ca7784d29f76547a63114475c453dbd28 100644
--- a/components/web_cache/renderer/web_cache_render_process_observer.cc
+++ b/components/web_cache/renderer/web_cache_render_process_observer.cc
@@ -60,9 +60,9 @@ void WebCacheRenderProcessObserver::OnRenderProcessShutdown() {
 }
 
 void WebCacheRenderProcessObserver::OnSetCacheCapacities(
-    size_t min_dead_capacity,
-    size_t max_dead_capacity,
-    size_t capacity) {
+    uint32_t min_dead_capacity,
+    uint32_t max_dead_capacity,
+    uint32_t capacity) {
   if (!webkit_initialized_) {
     pending_cache_min_dead_capacity_ = min_dead_capacity;
     pending_cache_max_dead_capacity_ = max_dead_capacity;