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

content/renderer/render_frame_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 756 matching lines @@
                                                  bool notify_result,
                                                  int world_id);
   void OnVisualStateRequest(uint64_t key);
   void OnSetEditableSelectionOffsets(int start, int end);
   void OnSetCompositionFromExistingText(
       int start, int end,
       const std::vector<blink::WebCompositionUnderline>& underlines);
   void OnExecuteNoValueEditCommand(const std::string& name);
   void OnExtendSelectionAndDelete(int before, int after);
   void OnReload(bool ignore_cache);
-  void OnTextSurroundingSelectionRequest(size_t max_length);
+  void OnTextSurroundingSelectionRequest(uint32_t max_length);
   void OnSetAccessibilityMode(AccessibilityMode new_mode);
   void OnSnapshotAccessibilityTree(int callback_id);
   void OnUpdateOpener(int opener_routing_id);
   void OnDidUpdateSandboxFlags(blink::WebSandboxFlags flags);
   void OnSetFrameOwnerProperties(
       const blink::WebFrameOwnerProperties& frame_owner_properties);
   void OnAdvanceFocus(blink::WebFocusType type, int32_t source_routing_id);
   void OnSetFocusedFrame();
   void OnTextTrackSettingsChanged(
       const FrameMsg_TextTrackSettings_Params& params);
@@ skipping 411 matching lines @@
 #endif
 
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_