Remove ContentClient::CanHandleWhileSwappedOut().

According to the issue 265021, ContentClient::CanHandleWhileSwappedOut() was
introduced to support synchronous browser->renderer messages for WebView.
But this is now obsolete, so we can remove it.

BUG=265021

Review URL: https://codereview.chromium.org/248703002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@268226 0039d316-1c4b-4281-b951-d872f2087c98

chrome/common/chrome_content_client.cc

@@ -493,14 +493,6 @@ void ChromeContentClient::AddAdditionalSchemes(
 #endif
 }
 
-bool ChromeContentClient::CanHandleWhileSwappedOut(
-    const IPC::Message& msg) {
-  // Any Chrome-specific messages (apart from those listed in
-  // CanSendWhileSwappedOut) that must be handled by the browser when sent from
-  // swapped out renderers.
-  return false;
-}
-
 std::string ChromeContentClient::GetProduct() const {
   return ::GetProduct();
 }

chrome/common/chrome_content_client.h

@@ -29,7 +29,6 @@ class ChromeContentClient : public content::ContentClient {
   virtual void AddAdditionalSchemes(
       std::vector<std::string>* standard_schemes,
       std::vector<std::string>* saveable_shemes) OVERRIDE;
-  virtual bool CanHandleWhileSwappedOut(const IPC::Message& msg) OVERRIDE;
   virtual std::string GetProduct() const OVERRIDE;
   virtual std::string GetUserAgent() const OVERRIDE;
   virtual base::string16 GetLocalizedString(int message_id) const OVERRIDE;

chrome/common/chrome_content_client_ios.mm

@@ -35,12 +35,6 @@ void ChromeContentClient::AddAdditionalSchemes(
   // No additional schemes for iOS.
 }
 
-bool ChromeContentClient::CanHandleWhileSwappedOut(
-    const IPC::Message& msg) {
-  NOTIMPLEMENTED();
-  return false;
-}
-
 std::string ChromeContentClient::GetProduct() const {
   chrome::VersionInfo version_info;
   std::string product("CriOS/");

content/common/swapped_out_messages.cc

@@ -93,9 +93,7 @@ bool SwappedOutMessages::CanHandleWhileSwappedOut(
       break;
   }
 
-  // Check with the embedder as well.
-  ContentClient* client = GetContentClient();
-  return client->CanHandleWhileSwappedOut(msg);
+  return false;
 }
 
 }  // namespace content

content/public/common/content_client.cc

@@ -70,10 +70,6 @@ bool ContentClient::CanSendWhileSwappedOut(const IPC::Message* message) {
   return false;
 }
 
-bool ContentClient::CanHandleWhileSwappedOut(const IPC::Message& message) {
-  return false;
-}
-
 std::string ContentClient::GetProduct() const {
   return std::string();
 }

content/public/common/content_client.h

@@ -94,10 +94,6 @@ class CONTENT_EXPORT ContentClient {
   // Returns whether the given message should be sent in a swapped out renderer.
   virtual bool CanSendWhileSwappedOut(const IPC::Message* message);
 
-  // Returns whether the given message should be processed in the browser on
-  // behalf of a swapped out renderer.
-  virtual bool CanHandleWhileSwappedOut(const IPC::Message& message);
-
   // Returns a string describing the embedder product name and version,
   // of the form "productname/version", with no other slashes.
   // Used as part of the user agent string.