Mark GetCurrentProcessArchitecture as inline, silencing a couple hundred warnings in a build with Clang. No bug, rs=njn

--HG--
extra : rebase_source : 12b06827b2aadec9afb70eac06a5d8abbd1c6543

ipc/chromium/src/base/process_util.h

@@ -65,7 +65,7 @@ enum ProcessArchitecture {
   PROCESS_ARCH_ARM = 0x8
 };
 
-static ProcessArchitecture GetCurrentProcessArchitecture()
+static inline ProcessArchitecture GetCurrentProcessArchitecture()
 {
   base::ProcessArchitecture currentArchitecture;
 #if defined(ARCH_CPU_X86)