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

extensions/common/stack_frame.cc

Index: extensions/common/stack_frame.cc
diff --git a/extensions/common/stack_frame.cc b/extensions/common/stack_frame.cc
index 0286c5b245cf29878f066664b5e7e92aa3226532..8d7046e566e70a46f38f06e3267209746a779538 100644
--- a/extensions/common/stack_frame.cc
+++ b/extensions/common/stack_frame.cc
@@ -25,8 +25,8 @@ StackFrame::StackFrame(const StackFrame& frame)
       function(frame.function) {
 }
 
-StackFrame::StackFrame(size_t line_number,
-                       size_t column_number,
+StackFrame::StackFrame(uint32_t line_number,
+                       uint32_t column_number,
                        const base::string16& source,
                        const base::string16& function)
     : line_number(line_number),