Tweak setViewport stuff for fwd-compat

Change-Id: I532336eced54544115dfd47d5557cc77bafdfc87

Author: Jean-Baptiste Queru

core/jni/android/graphics/Canvas.cpp

@@ -73,20 +73,6 @@ class SkCanvasGlue {
     static jboolean isOpaque(JNIEnv* env, jobject jcanvas) {
         NPE_CHECK_RETURN_ZERO(env, jcanvas);
         SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, jcanvas);
-
-        /*
-            Currently we cannot support transparency in GL-based canvas' at
-            the view level. Therefore we cannot base our answer on the device's
-            bitmap, but need to hard-code the answer. If we relax this
-            limitation in views, we can simplify the following code as well.
-         
-            Use the getViewport() call to find out if we're gl-based...
-        */
-        if (canvas->getViewport(NULL)) {
-            return true;
-        }
-        
-        // normal technique, rely on the device's bitmap for the answer
         return canvas->getDevice()->accessBitmap(false).isOpaque();
     }
 
@@ -104,7 +90,6 @@ class SkCanvasGlue {
 
     static void setViewport(JNIEnv* env, jobject, SkCanvas* canvas,
                             int width, int height) {
-        canvas->setViewport(width, height);
     }
 
     static void setBitmap(JNIEnv* env, jobject, SkCanvas* canvas,

core/jni/android/graphics/NinePatchImpl.cpp

@@ -116,9 +116,9 @@ void NinePatch_Draw(SkCanvas* canvas, const SkRect& bounds,
         paint = &defaultPaint;
     }
 
-    // if our canvas is GL, draw this as a mesh, which will be faster than
-    // in parts (which is faster for raster)
-    if (canvas && canvas->getViewport(NULL)) {
+    // if our SkCanvas were back by GL we should enable this and draw this as
+    // a mesh, which will be faster in most cases.
+    if (false) {
         SkNinePatch::DrawMesh(canvas, bounds, bitmap,
                               chunk.xDivs, chunk.numXDivs,
                               chunk.yDivs, chunk.numYDivs,