Add unittest for OpenTypeSanitizer

Source/platform/TestingPlatformSupport.cpp

Index: Source/platform/TestingPlatformSupport.cpp
diff --git a/Source/platform/TestingPlatformSupport.cpp b/Source/platform/TestingPlatformSupport.cpp
index 366766bd7aed8a1e9b88dcceea1155fb503c4f4c..14da1c2d66497daeb05693cf3684d83cc91aa8b3 100644
--- a/Source/platform/TestingPlatformSupport.cpp
+++ b/Source/platform/TestingPlatformSupport.cpp
@@ -32,6 +32,11 @@
 
 #include "platform/TestingPlatformSupport.h"
 
+#include <base/file_util.h>

[jamesr, 2014/06/06 18:56:04]

<> style includes should only be used for standard library.

I suspect the reason you've used them here is because the checkdeps script
(correctly) flags these as a bad dependency.  Any code depending on base::
should be in the chromium repository and routed to blink through the blink APIs.
 We have several test support APIs in the public/ directories already

+#include <base/files/file_path.h>
+#include <base/path_service.h>
+#include <string>
+
 namespace WebCore {
 
 TestingDiscardableMemory::TestingDiscardableMemory(size_t size) : m_data(size), m_isLocked(true)
@@ -90,4 +95,31 @@ const unsigned char* TestingPlatformSupport::getTraceCategoryEnabledFlag(const c
     return &tracingIsDisabled;
 }
 
+blink::WebUnitTestSupport* TestingPlatformSupport::unitTestSupport()
+{
+    return this;
+}
+
+blink::WebString TestingPlatformSupport::webKitRootDir()
+{
+    base::FilePath path;
+    PathService::Get(base::DIR_SOURCE_ROOT, &path);
+    path = path.Append(FILE_PATH_LITERAL("third_party/WebKit"));
+    path = base::MakeAbsoluteFilePath(path);
+    ASSERT(!path.empty());
+    std::string pathAscii = path.MaybeAsASCII();
+    ASSERT(!pathAscii.empty());
+    return blink::WebString::fromUTF8(pathAscii.c_str());
+}
+
+blink::WebData TestingPlatformSupport::readFromFile(const blink::WebString& path)
+{
+    base::FilePath filePath = base::FilePath::FromUTF8Unsafe(path.utf8());
+
+    std::string buffer;
+    base::ReadFileToString(filePath, &buffer);
+
+    return blink::WebData(buffer.data(), buffer.size());
+}
+
 } // namespace WebCore