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

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 387a2c04afa24380c0fc610c0cdcea6c2a46a6e8..735ec1be38166a78b9855b4b1578fb4a50f78720 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2130,7 +2130,7 @@ void RenderFrameImpl::OnReload(bool ignore_cache) {
   frame_->reload(ignore_cache);
 }
 
-void RenderFrameImpl::OnTextSurroundingSelectionRequest(size_t max_length) {
+void RenderFrameImpl::OnTextSurroundingSelectionRequest(uint32_t max_length) {
   blink::WebSurroundingText surroundingText;
   surroundingText.initialize(frame_->selectionRange(), max_length);
 
@@ -2343,7 +2343,7 @@ void RenderFrameImpl::SetSelectedText(const base::string16& selection_text,
   // Use the routing id of Render Widget Host.
   Send(new ViewHostMsg_SelectionChanged(GetRenderWidget()->routing_id(),
                                         selection_text,
-                                        offset,
+                                        static_cast<uint32_t>(offset),
                                         range));
 }
 
@@ -2821,7 +2821,7 @@ void RenderFrameImpl::didAddMessageToConsole(
     FOR_EACH_OBSERVER(RenderFrameObserver, observers_,
                       DetailedConsoleMessageAdded(
                           message.text, source_name, stack_trace, source_line,
-                          static_cast<int32_t>(log_severity)));
+                          static_cast<uint32_t>(log_severity)));
   }
 
   Send(new FrameHostMsg_AddMessageToConsole(