Add Chromium-side changes for MediaSource::isTypeSupported()

webkit/glue/webkitplatformsupport_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_PLATFORM_SUPPORT_IMPL_H_
 #define WEBKIT_PLATFORM_SUPPORT_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/debug/trace_event.h"
 #include "base/platform_file.h"
@@ skipping 109 matching lines @@
       unsigned char* buffer, size_t length);
   virtual void setSharedTimerFiredFunction(void (*func)());
   virtual void setSharedTimerFireInterval(double interval_seconds);
   virtual void stopSharedTimer();
   virtual void callOnMainThread(void (*func)(void*), void* context);
   virtual WebKit::WebThread* createThread(const char* name);
   virtual WebKit::WebThread* currentThread();
   virtual WebKit::WebCompositorSupport* compositorSupport();
   virtual WebKit::WebDiscardableMemory* allocateAndLockDiscardableMemory(
       size_t bytes);
+  virtual bool isTypeSupportedForMediaSource(

[darin (slow to review), 2013/03/14 00:14:01]

Why isn't this a function on WebMIMERegistry?

[acolwell GONE FROM CHROMIUM, 2013/03/14 18:34:34]

Done.

+      const WebKit::WebString& type,
+      const WebKit::WebVector<WebKit::WebString>& codecs);
 
 
   // Embedder functions. The following are not implemented by the glue layer and
   // need to be specialized by the embedder.
 
   // Gets a localized string given a message id.  Returns an empty string if the
   // message id is not found.
   virtual string16 GetLocalizedString(int message_id) = 0;
 
   // Returns the raw data for a resource.  This resource must have been
@@ skipping 45 matching lines @@
   int shared_timer_suspended_;  // counter
   WebThemeEngineImpl theme_engine_;
   base::ThreadLocalStorage::Slot current_thread_slot_;
   scoped_ptr<webkit::WebCompositorSupportImpl> compositor_support_;
   scoped_ptr<FlingCurveConfiguration> fling_curve_configuration_;
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_PLATFORM_SUPPORT_IMPL_H_