servo: Merge #2377 - Fix hidpi parameter of android (from aydinkim:hidpi); r=larsbergstrom

Fix for android rendering.
Need to consider about getting accurate size framebuffer & window parameter respectively from android stack and follow up the stuffs on another platform.

Source-Repo: https://github.com/servo/servo
Source-Revision: 052d3cb0835470da281669b8dce1c9c51e8e7b9e

servo/src/components/main/platform/common/glut_windowing.rs

@@ -182,7 +182,7 @@ impl WindowMethods<Application> for Window {
 
     fn hidpi_factor(&self) -> f32 {
         //FIXME: Do nothing in GLUT now.
-    0f32
+    1f32
     }
 }