pdf viewer: fix a few warnings, and enable warning as errors

Review URL: https://codereview.chromium.org/18293012

git-svn-id: http://skia.googlecode.com/svn/trunk@9966 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/PdfViewer/SkPdfParser.cpp b/experimental/PdfViewer/SkPdfParser.cpp
index ea0f625..e1f549e 100644
--- a/experimental/PdfViewer/SkPdfParser.cpp
+++ b/experimental/PdfViewer/SkPdfParser.cpp
@@ -1905,12 +1905,12 @@
 // references automatically.
 
 bool SkPdfViewer::load(const SkString inputFileName, SkPicture* out) {
-    std::cout << "Init: " << inputFileName.c_str() << std::endl;
+    std::cout << "PDF Loaded: " << inputFileName.c_str() << std::endl;
 
     SkNativeParsedPDF* doc = new SkNativeParsedPDF(inputFileName.c_str());
     if (!doc->pages())
     {
-        std::cout << "ERROR: Empty Document" << inputFileName.c_str() << std::endl;
+        std::cout << "ERROR: Empty PDF Document" << inputFileName.c_str() << std::endl;
         return false;
     } else {