SampleApp Cleanup:

 -   Set resoursePath to sensible default.
 -   Remove verbosity of DitherBitmap.
 -   SampleEncode no longer tries to mkdir('/encoded'), now stores
     encoded data in memory and uses the SkDecodingImageGenerator
     to decode.

BUG=
R=reed@google.com

Review URL: https://codereview.chromium.org/132513003

git-svn-id: http://skia.googlecode.com/svn/trunk@13015 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 010fc25..d5fe182 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -815,7 +815,7 @@
         SkTQSort(fSamples.begin(), fSamples.end() ? fSamples.end() - 1 : NULL, compareSampleTitle);
     }
 
-    const char* resourcePath = NULL;
+    const char* resourcePath = "resources";  // same default as tests
     fMSAASampleCount = 0;
 
     const char* const commandName = argv[0];