Replace web_cache_messages.h with Mojo service.

components/web_cache/renderer/web_cache_render_process_observer.cc

 // Copyright 2014 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 "components/web_cache/renderer/web_cache_render_process_observer.h"
 
 #include <limits>
 
+#include "base/bind.h"
 #include "base/numerics/safe_conversions.h"
-#include "components/web_cache/common/web_cache_messages.h"
+#include "content/public/common/service_registry.h"
+#include "content/public/renderer/render_thread.h"
 #include "third_party/WebKit/public/web/WebCache.h"
 
-using blink::WebCache;
-
 namespace web_cache {
 
 namespace {
 const size_t kUnitializedCacheCapacity = UINT_MAX;
 }
 
 WebCacheRenderProcessObserver::WebCacheRenderProcessObserver()
   : clear_cache_pending_(false),
     webkit_initialized_(false),
     pending_cache_min_dead_capacity_(0),
     pending_cache_max_dead_capacity_(0),
     pending_cache_capacity_(kUnitializedCacheCapacity) {
+  content::ServiceRegistry* service_registry =
+      content::RenderThread::Get()->GetServiceRegistry();
+  if (service_registry) {
+    service_registry->AddService(base::Bind(
+        &WebCacheRenderProcessObserver::BindRequest, base::Unretained(this)));
+  }
 }
 
 WebCacheRenderProcessObserver::~WebCacheRenderProcessObserver() {
 }
 
+void WebCacheRenderProcessObserver::BindRequest(
+    mojo::InterfaceRequest<mojom::WebCache> web_cache_request) {
+  bindings_.AddBinding(this, std::move(web_cache_request));
+}
+
 void WebCacheRenderProcessObserver::ExecutePendingClearCache() {
   if (clear_cache_pending_ && webkit_initialized_) {
     clear_cache_pending_ = false;
-    WebCache::clear();
+    blink::WebCache::clear();
   }
 }
 
-bool WebCacheRenderProcessObserver::OnControlMessageReceived(
-    const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(WebCacheRenderProcessObserver, message)
-    IPC_MESSAGE_HANDLER(WebCacheMsg_SetCacheCapacities, OnSetCacheCapacities)
-    IPC_MESSAGE_HANDLER(WebCacheMsg_ClearCache, OnClearCache)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
 void WebCacheRenderProcessObserver::WebKitInitialized() {
   webkit_initialized_ = true;
   if (pending_cache_capacity_ != kUnitializedCacheCapacity) {
-    WebCache::setCapacities(pending_cache_min_dead_capacity_,
-                            pending_cache_max_dead_capacity_,
-                            pending_cache_capacity_);
+    blink::WebCache::setCapacities(pending_cache_min_dead_capacity_,
+                                   pending_cache_max_dead_capacity_,
+                                   pending_cache_capacity_);
   }
 }
 
 void WebCacheRenderProcessObserver::OnRenderProcessShutdown() {
   webkit_initialized_ = false;
 }
 
-void WebCacheRenderProcessObserver::OnSetCacheCapacities(
+void WebCacheRenderProcessObserver::SetCacheCapacities(
     uint64_t min_dead_capacity,
     uint64_t max_dead_capacity,
     uint64_t capacity64) {
   size_t min_dead_capacity2 = base::checked_cast<size_t>(min_dead_capacity);
   size_t max_dead_capacity2 = base::checked_cast<size_t>(max_dead_capacity);
   size_t capacity = base::checked_cast<size_t>(capacity64);
+
   if (!webkit_initialized_) {
     pending_cache_min_dead_capacity_ = min_dead_capacity2;
     pending_cache_max_dead_capacity_ = max_dead_capacity2;
     pending_cache_capacity_ = capacity;
     return;
   }
 
-  WebCache::setCapacities(
-      min_dead_capacity2, max_dead_capacity2, capacity);
+  blink::WebCache::setCapacities(min_dead_capacity2, max_dead_capacity2,
+                                 capacity);
 }
 
-void WebCacheRenderProcessObserver::OnClearCache(bool on_navigation) {
+void WebCacheRenderProcessObserver::ClearCache(bool on_navigation) {
   if (on_navigation || !webkit_initialized_)
     clear_cache_pending_ = true;
   else
-    WebCache::clear();
+    blink::WebCache::clear();
 }
 
 }  // namespace web_cache