Implement UnitTestSupport::readFromFile

This allows us to remove all PlatformFileHandle related code
in Blink core.

(Blink side patch: https://codereview.chromium.org/22645008/)

BUG=267341

Review URL: https://chromiumcodereview.appspot.com/22738002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@216981 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 11 insertions, 0 deletions

diff --git a/webkit/support/test_webkit_platform_support.cc b/webkit/support/test_webkit_platform_support.cc
index 5156568..19d208a 100644
--- a/webkit/support/test_webkit_platform_support.cc
+++ b/webkit/support/test_webkit_platform_support.cc
@@ -6,6 +6,7 @@
 
 #include "base/command_line.h"
 #include "base/file_util.h"
+#include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/metrics/stats_counters.h"
 #include "base/path_service.h"
@@ -344,3 +345,12 @@ WebKit::WebLayerTreeView*
   return createLayerTreeViewForTesting();
 }
 
+WebKit::WebData TestWebKitPlatformSupport::readFromFile(
+    const WebKit::WebString& path) {
+  base::FilePath file_path = base::FilePath::FromUTF16Unsafe(path);
+
+  std::string buffer;
+  file_util::ReadFileToString(file_path, &buffer);
+
+  return WebKit::WebData(buffer.data(), buffer.size());
+}
diff --git a/webkit/support/test_webkit_platform_support.h b/webkit/support/test_webkit_platform_support.h
index 3939a59..7b3ee85 100644
--- a/webkit/support/test_webkit_platform_support.h
+++ b/webkit/support/test_webkit_platform_support.h
@@ -106,6 +106,7 @@ class TestWebKitPlatformSupport :
   virtual WebKit::WebLayerTreeView* createLayerTreeViewForTesting();
   virtual WebKit::WebLayerTreeView* createLayerTreeViewForTesting(
       TestViewType type);
+  virtual WebKit::WebData readFromFile(const WebKit::WebString& path);
 
  private:
   webkit_glue::SimpleWebMimeRegistryImpl mime_registry_;