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Check for key system support using new mojo service KeySystemSupport

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https://chromium-review.googlesource.com/c/chromium/src/+/834764
This commit is contained in:
deepak1556 2018-04-12 20:50:00 +05:30 • committed by Samuel Attard
parent e1f25253db
commit 77f427acc8
10 changed files with 68 additions and 233 deletions
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67
chromium_src/chrome/browser/renderer_host/pepper/widevine_cdm_message_filter.cc
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// Copyright (c) 2013 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.
#include "chrome/browser/renderer_host/pepper/widevine_cdm_message_filter.h"
#include "base/bind.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/plugin_service.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/webplugininfo.h"
#include "media/media_features.h"
using content::BrowserThread;
using content::PluginService;
using content::WebPluginInfo;
WidevineCdmMessageFilter::WidevineCdmMessageFilter(
int render_process_id,
content::BrowserContext* browser_context)
: BrowserMessageFilter(ChromeMsgStart),
render_process_id_(render_process_id),
browser_context_(browser_context) {}
bool WidevineCdmMessageFilter::OnMessageReceived(const IPC::Message& message) {
IPC_BEGIN_MESSAGE_MAP(WidevineCdmMessageFilter, message)
#if BUILDFLAG(ENABLE_LIBRARY_CDMS)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_IsInternalPluginAvailableForMimeType,
OnIsInternalPluginAvailableForMimeType)
#endif // BUILDFLAG(ENABLE_LIBRARY_CDMS)
IPC_MESSAGE_UNHANDLED(return false)
IPC_END_MESSAGE_MAP()
return true;
}
#if BUILDFLAG(ENABLE_LIBRARY_CDMS)
void WidevineCdmMessageFilter::OnIsInternalPluginAvailableForMimeType(
const std::string& mime_type,
bool* is_available,
std::vector<base::string16>* additional_param_names,
std::vector<base::string16>* additional_param_values) {
std::vector<WebPluginInfo> plugins;
PluginService::GetInstance()->GetInternalPlugins(&plugins);
for (size_t i = 0; i < plugins.size(); ++i) {
const WebPluginInfo& plugin = plugins[i];
const std::vector<content::WebPluginMimeType>& mime_types =
plugin.mime_types;
for (size_t j = 0; j < mime_types.size(); ++j) {
if (mime_types[j].mime_type == mime_type) {
*is_available = true;
*additional_param_names = mime_types[j].additional_param_names;
*additional_param_values = mime_types[j].additional_param_values;
return;
}
}
}
*is_available = false;
}
#endif // BUILDFLAG(ENABLE_LIBRARY_CDMS)
void WidevineCdmMessageFilter::OnDestruct() const {
BrowserThread::DeleteOnUIThread::Destruct(this);
}
WidevineCdmMessageFilter::~WidevineCdmMessageFilter() {}

50
chromium_src/chrome/browser/renderer_host/pepper/widevine_cdm_message_filter.h
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// Copyright (c) 2013 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 CHROME_BROWSER_RENDERER_HOST_PEPPER_WIDEVINE_CDM_MESSAGE_FILTER_H_
#define CHROME_BROWSER_RENDERER_HOST_PEPPER_WIDEVINE_CDM_MESSAGE_FILTER_H_
#include "chrome/common/widevine_cdm_messages.h"
#include "content/public/browser/browser_message_filter.h"
#include "media/media_features.h"
namespace content {
class BrowserContext;
}
class WidevineCdmMessageFilter : public content::BrowserMessageFilter {
public:
explicit WidevineCdmMessageFilter(int render_process_id,
content::BrowserContext* browser_context);
bool OnMessageReceived(const IPC::Message& message) override;
void OnDestruct() const override;
private:
friend class content::BrowserThread;
friend class base::DeleteHelper<WidevineCdmMessageFilter>;
~WidevineCdmMessageFilter() override;
#if BUILDFLAG(ENABLE_LIBRARY_CDMS)
// Returns whether any internal plugin supporting |mime_type| is registered
// and enabled. Does not determine whether the plugin can actually be
// instantiated (e.g. whether it has all its dependencies).
// When the returned *|is_available| is true, |additional_param_names| and
// |additional_param_values| contain the name-value pairs, if any, specified
// for the *first* non-disabled plugin found that is registered for
// |mime_type|.
void OnIsInternalPluginAvailableForMimeType(
const std::string& mime_type,
bool* is_available,
std::vector<base::string16>* additional_param_names,
std::vector<base::string16>* additional_param_values);
#endif // BUILDFLAG(ENABLE_LIBRARY_CDMS)
int render_process_id_;
content::BrowserContext* browser_context_;
DISALLOW_COPY_AND_ASSIGN(WidevineCdmMessageFilter);
};
#endif // CHROME_BROWSER_RENDERER_HOST_PEPPER_WIDEVINE_CDM_MESSAGE_FILTER_H_