pdfviewer: 1) debug code for drawText (show magenta background for text, to show text even when we fail to load/show it), 2) some cleanup: refactor and rename classes and files

Review URL: https://codereview.chromium.org/23020003

git-svn-id: http://skia.googlecode.com/svn/trunk@10716 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/PdfViewer/SkPdfConfig.h b/experimental/PdfViewer/SkPdfConfig.h
index 3d24a86..014f089 100644
--- a/experimental/PdfViewer/SkPdfConfig.h
+++ b/experimental/PdfViewer/SkPdfConfig.h
@@ -3,38 +3,10 @@
 
 //#define PDF_TRACE
 //#define PDF_TRACE_READ_TOKEN
+//#define PDF_TRACE_DRAWTEXT
 //#define PDF_TRACE_DIFF_IN_PNG
 //#define PDF_DEBUG_NO_CLIPING
 //#define PDF_DEBUG_NO_PAGE_CLIPING
 //#define PDF_DEBUG_3X
 
-// TODO(edisonn): move in trace util.
-#ifdef PDF_TRACE
-void SkTraceMatrix(const SkMatrix& matrix, const char* sz);
-void SkTraceRect(const SkRect& rect, const char* sz);
-#else
-#define SkTraceMatrix(a,b)
-#define SkTraceRect(a,b)
-#endif
-
-struct NotOwnedString {
-    const unsigned char* fBuffer;
-    size_t fBytes;
-
-    static void init(NotOwnedString* str) {
-        str->fBuffer = NULL;
-        str->fBytes = 0;
-    }
-
-    static void init(NotOwnedString* str, const char* sz) {
-        str->fBuffer = (const unsigned char*)sz;
-        str->fBytes = strlen(sz);
-    }
-
-    bool equals(const char* sz) {
-        return strncmp((const char*)fBuffer, sz, fBytes) == 0 && fBytes == strlen(sz);
-
-    }
-};
-
 #endif  // __DEFINED__SkPdfConfig