[Hunspell] Reduce maximum suggestions from 15 to 5.

Before this patch, the maximum number of suggestions within Hunspell
was 15, although Chrome uses only 5 suggestions.
See: https://cs.chromium.org/chromium/src/components/spellcheck/common/spellcheck_common.h?l=22&rcl=a88c5fe6e641bdc9cb84b64ddb90ead67e0d0bcc

So when a misspelled word has more than 5 suggestions, Hunspell does
a useless job and searches for suggestions that will never be used.

This patch reduces from 15 to 5 the maximum number of searched
suggestions within Hunspell.

Bug: NONE
Change-Id: I68054cfc161ec509c99a620de2b0e5252576853c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1863298
Commit-Queue: Rouslan Solomakhin <rouslan@chromium.org>
Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#706478}

AUTHORS

@@ -41,6 +41,7 @@ Alex Henrie <alexhenrie24@gmail.com>
 Alex Scheele <alexscheele@gmail.com>
 Alexander Douglas <agdoug@amazon.com>
 Alexander Guettler <alexander@guettler.io>
+Alexander Rezepkin <etu@vivaldi.net>
 Alexander Shalamov <alexander.shalamov@intel.com>
 Alexander Sulfrian <alexander@sulfrian.net>
 Alexandre Abreu <wiss1976@gmail.com>

third_party/hunspell/google.patch

@@ -1042,7 +1042,7 @@ diff --git a/src/hunspell/hunspell.hxx b/src/hunspell/hunspell.hxx
 index 43af66b..a35df83 100644
 --- a/src/hunspell/hunspell.hxx
 +++ b/src/hunspell/hunspell.hxx
-@@ -79,6 +79,10 @@
+@@ -79,9 +79,13 @@
  #include <string>
  #include <vector>
  
@@ -1052,7 +1052,12 @@ index 43af66b..a35df83 100644
 +
  #define SPELL_XML "<?xml?>"
  
- #define MAXSUGGESTION 15
+-#define MAXSUGGESTION 15
++#define MAXSUGGESTION 5
+ #define MAXSHARPS 5
+ 
+ #ifndef MAXWORDLEN
+
 @@ -115,11 +119,17 @@ class LIBHUNSPELL_DLL_EXPORTED Hunspell {
     * long path names (without the long path prefix Hunspell will use fopen()
     * with system-dependent character encoding instead of _wfopen()).

third_party/hunspell/src/hunspell/hunspell.hxx

@@ -85,7 +85,7 @@
 
 #define SPELL_XML "<?xml?>"
 
-#define MAXSUGGESTION 15
+#define MAXSUGGESTION 5
 #define MAXSHARPS 5
 
 #ifndef MAXWORDLEN