Fixes for -Wunused-function on Linux, Android and ChromeOS

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index ffa0b9ee7982abd156b1f611e53afc89938ab283..620ac98d46306a27a851cc90dee2adc16628f320 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -476,6 +476,7 @@ bool CertMatchesFilter(const net::X509Certificate& cert,
   return false;
 }
 
+#if !defined(OS_ANDROID)
 // Fills |map| with the per-script font prefs under path |map_name|.
 void FillFontFamilyMap(const PrefService* prefs,
                        const char* map_name,
@@ -548,6 +549,7 @@ int GetCrashSignalFD(const CommandLine& command_line) {
   return -1;
 }
 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
+#endif  // !defined(OS_ANDROID)
 
 #if !defined(OS_CHROMEOS)
 GURL GetEffectiveURLForSignin(const GURL& url) {