[Android] Set --optimize-for-size JavaScript flag for low-end devices

content/renderer/render_process_impl.cc

Index: content/renderer/render_process_impl.cc
diff --git a/content/renderer/render_process_impl.cc b/content/renderer/render_process_impl.cc
index 20d181b26820fac540103530006d64798a4cffaa..bf972b137e8a1071ab87d16e6034a16ff4043cd6 100644
--- a/content/renderer/render_process_impl.cc
+++ b/content/renderer/render_process_impl.cc
@@ -36,6 +36,10 @@
 #include "base/mac/mac_util.h"
 #endif
 
+#if defined(OS_ANDROID)
+#include "base/android/sys_utils.h"
+#endif
+
 namespace content {
 
 RenderProcessImpl::RenderProcessImpl()
@@ -68,6 +72,11 @@ RenderProcessImpl::RenderProcessImpl()
   // Out of process dev tools rely upon auto break behavior.
   webkit_glue::SetJavaScriptFlags("--debugger-auto-break");
 
+#if defined(OS_ANDROID)
+  if (base::android::SysUtils::IsLowEndDevice())
+    webkit_glue::SetJavaScriptFlags("--optimize-for-size");
+#endif
+
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kJavaScriptFlags)) {
     webkit_glue::SetJavaScriptFlags(