Revert "Revert "resources: remove most uses of GetResourcePath()""

This reverts commit cca230055921d2df8708ed6f9abcc2d43468dc7f.

Reason for revert: think I guessed wrong about g32 -- unreverting

Original change's description:
> Revert "resources: remove most uses of GetResourcePath()"
> 
> This reverts commit 5093a539def3ae09df324018f2343827009b2e05.
> 
> Reason for revert: google3 seems broken
> 
> Original change's description:
> > resources: remove most uses of GetResourcePath()
> > 
> > Going forward, we will standardize on GetResourceAsData(), which will
> > make it easier to run tests in environments without access to the
> > filesystem.
> > 
> > Also: GetResourceAsData() complains when a resource is missing.
> > This is usually an error.
> > 
> > Change-Id: Iaf70b71b0ca5ed8cd1a5538a60ef185ae8736188
> > Reviewed-on: https://skia-review.googlesource.com/82642
> > Reviewed-by: Hal Canary <halcanary@google.com>
> > Commit-Queue: Hal Canary <halcanary@google.com>
> 
> TBR=halcanary@google.com,scroggo@google.com
> 
> Change-Id: Ic5a7c0167c995a672e6b06dc92abe00564432214
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/83001
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>

TBR=halcanary@google.com,scroggo@google.com,reed@google.com

Change-Id: I5a46e4de61186a8a5eb9cacd3275e24e311d5a07
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/82942
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/samplecode/SampleIdentityScale.cpp b/samplecode/SampleIdentityScale.cpp
index 2ec9112..ad23541 100644
--- a/samplecode/SampleIdentityScale.cpp
+++ b/samplecode/SampleIdentityScale.cpp
@@ -25,11 +25,10 @@
 class IdentityScaleView : public SampleView {
 public:
     IdentityScaleView(const char imageFilename[]) {
-      SkString resourcePath = GetResourcePath(imageFilename);
-      if (!decode_file(resourcePath.c_str(), &fBM)) {
-          fBM.allocN32Pixels(1, 1);
-          *(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad
-      }
+        if (!DecodeDataToBitmap(GetResourceAsData(imageFilename), &fBM)) {
+            fBM.allocN32Pixels(1, 1);
+            *(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad
+        }
     }
 
 protected: