Introduce facade for interaction with Android SurfaceTexture.

ui/gl/gl.gyp

Index: ui/gl/gl.gyp
diff --git a/ui/gl/gl.gyp b/ui/gl/gl.gyp
index 940578beeb7ff26ff8f713ff92dd50b07978b3af..139a88f262626de036b22e180feefdaf47b4800b 100644
--- a/ui/gl/gl.gyp
+++ b/ui/gl/gl.gyp
@@ -313,15 +313,6 @@
     ['OS=="android"' , {
       'targets': [
         {
-          'target_name': 'surface_texture_jni_headers',
-          'type': 'none',
-          'variables': {
-            'jni_gen_package': 'ui/gl',
-            'input_java_class': 'android/graphics/SurfaceTexture.class',
-          },
-          'includes': [ '../../build/jar_file_jni_generator.gypi' ],
-        },
-        {
           'target_name': 'surface_jni_headers',
           'type': 'none',
           'variables': {
@@ -334,10 +325,10 @@
           'target_name': 'gl_jni_headers',
           'type': 'none',
           'dependencies': [
-            'surface_texture_jni_headers',
             'surface_jni_headers',
           ],
           'sources': [
+            '../android/java/src/org/chromium/ui/gfx/SurfaceTextureBridge.java',
             '../android/java/src/org/chromium/ui/gfx/SurfaceTextureListener.java',
           ],
           'variables': {